From 2a2efad09c0c5bba6e46adcb48c20019e75304e0 Mon Sep 17 00:00:00 2001
From: gururaj1512 <gururajgurram1512@gmail.com>
Date: Mon, 23 Jun 2025 10:50:31 +0000
Subject: [PATCH 1/3] feat: add `stats/strided/ztest2`

---
 .../@stdlib/stats/strided/ztest2/README.md    | 237 ++++++++++
 .../strided/ztest2/benchmark/benchmark.js     | 104 +++++
 .../ztest2/benchmark/benchmark.ndarray.js     | 104 +++++
 .../stats/strided/ztest2/docs/repl.txt        | 136 ++++++
 .../strided/ztest2/docs/types/index.d.ts      | 245 ++++++++++
 .../stats/strided/ztest2/docs/types/test.ts   | 441 ++++++++++++++++++
 .../stats/strided/ztest2/examples/index.js    |  36 ++
 .../@stdlib/stats/strided/ztest2/lib/index.js |  71 +++
 .../@stdlib/stats/strided/ztest2/lib/main.js  |  65 +++
 .../stats/strided/ztest2/lib/ndarray.js       | 155 ++++++
 .../@stdlib/stats/strided/ztest2/package.json |  69 +++
 .../@stdlib/stats/strided/ztest2/test/test.js |  38 ++
 .../stats/strided/ztest2/test/test.main.js    | 328 +++++++++++++
 .../stats/strided/ztest2/test/test.ndarray.js | 381 +++++++++++++++
 14 files changed, 2410 insertions(+)
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/README.md
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/package.json
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/test/test.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
 create mode 100644 lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js

diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/README.md b/lib/node_modules/@stdlib/stats/strided/ztest2/README.md
new file mode 100644
index 000000000000..8e6dc8b634f7
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/README.md
@@ -0,0 +1,237 @@
+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2025 The Stdlib Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+-->
+
+<!-- lint disable max-heading-length -->
+
+# ztest2
+
+> Compute a two-sample Z-test for a strided array.
+
+<section class="intro">
+
+A Z-test commonly refers to a two-sample location test which compares the means of two independent sets of measurements `X` and `Y` when the population standard deviations are known. A Z-test supports testing three different null hypotheses `H0`:
+
+-   `H0: μX - μY ≥ Δ` versus the alternative hypothesis `H1: μX - μY < Δ`.
+-   `H0: μX - μY ≤ Δ` versus the alternative hypothesis `H1: μX - μY > Δ`.
+-   `H0: μX - μY = Δ` versus the alternative hypothesis `H1: μX - μY ≠ Δ`.
+
+Here, `μX` and `μY` are the true population means of samples `X` and `Y`, respectively, and `Δ` is the hypothesized difference in means (typically `0` by default).
+
+</section>
+
+<!-- /.intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var ztest2 = require( '@stdlib/stats/strided/ztest2' );
+```
+
+#### ztest2( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out )
+
+Computes a two-sample Z-test for a strided array.
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+
+var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+
+var results = new Results();
+var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+// returns {...}
+
+var bool = ( out === results );
+// returns true
+```
+
+The function has the following parameters:
+
+-   **N**: number of indexed elements.
+-   **alternative**: [alternative hypothesis][@stdlib/stats/base/ztest/alternatives].
+-   **alpha**: significance level.
+-   **mu**: mean value under the null hypothesis.
+-   **sigmax**: known standard deviation of `x`.
+-   **x**: input array.
+-   **strideX**: stride length for `x`.
+-   **sigmay**: known standard deviation of `y`.
+-   **y**: input array.
+-   **strideY**: stride length for `y`.
+-   **out**: output [results object][@stdlib/stats/base/ztest/two-sample/results/float64].
+
+The `N` and stride parameters determine which elements in the strided array are accessed at runtime. For example, to perform a two-sample Z-test over every other element in `x` and `y`,
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+
+var x = [ 4.0, 0.0, 4.0, 0.0, 6.0, 0.0, 6.0, 0.0, 5.0, 0.0 ];
+var y = [ 3.0, 0.0, 3.0, 0.0, 5.0, 0.0, 7.0, 0.0, 7.0, 0.0 ];
+
+var results = new Results();
+var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x, 2, 2.0, y, 2, results );
+// returns {...}
+
+var bool = ( out === results );
+// returns true
+```
+
+Note that indexing is relative to the first index. To introduce an offset, use [`typed array`][mdn-typed-array] views.
+
+<!-- eslint-disable stdlib/capitalized-comments -->
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var Float64Array = require( '@stdlib/array/float64' );
+
+var x0 = new Float64Array( [ 0.0, 4.0, 4.0, 6.0, 6.0, 5.0 ] );
+var x1 = new Float64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var y0 = new Float64Array( [ 0.0, 3.0, 3.0, 5.0, 7.0, 7.0 ] );
+var y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
+
+var results = new Results();
+var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x1, 1, 2.0, y1, 1, results );
+// returns {...}
+
+var bool = ( out === results );
+// returns true
+```
+
+#### ztest2.ndarray( N, alternative, alpha, mu, sigmax, x, strideX, offsetX,  sigmay, y, strideY, offsetY, out )
+
+Computes a two-sample Z-test for a strided array using alternative indexing semantics.
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+
+var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+
+var results = new Results();
+var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+// returns {...}
+
+var bool = ( out === results );
+// returns true
+```
+
+The function has the following additional parameters:
+
+-   **offsetX**: starting index for `x`.
+-   **offsetY**: starting index for `y`.
+
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to perform a two-sample Z-test over every other element in `x` and `y` starting from the second element
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+
+var x = [ 0.0, 4.0, 0.0, 4.0, 0.0, 6.0, 0.0, 6.0, 0.0, 5.0 ];
+var y = [ 0.0, 3.0, 0.0, 3.0, 0.0, 5.0, 0.0, 7.0, 0.0, 7.0 ];
+
+var results = new Results();
+var out = ztest2.ndarray( 5, 'two-sided', 0.05, 0.0, 1.0, x, 2, 1, 2.0, y, 2, 1, results );
+// returns {...}
+
+var bool = ( out === results );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   As a general rule of thumb, a Z-test is most reliable when `N >= 50`. For smaller sample sizes or when the standard deviation is unknown, prefer a t-test.
+-   Both functions support array-like objects having getter and setter accessors for array element access (e.g., [`@stdlib/array/base/accessor`][@stdlib/array/base/accessor]).
+-   Depending on the environment, the typed versions ([`dztest2`][@stdlib/stats/strided/dztest2], [`sztest2`][@stdlib/stats/strided/sztest2], etc.) are likely to be significantly more performant.
+
+</section>
+
+<!-- /.notes -->
+
+<section class="examples">
+
+## Examples
+
+<!-- eslint no-undef: "error" -->
+
+```javascript
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var normal = require( '@stdlib/random/array/normal' );
+var ztest2 = require( '@stdlib/stats/strided/ztest2' );
+
+var x = normal( 1000, 0.0, 1.0, {
+    'dtype': 'generic'
+});
+var y = normal( 1000, 0.0, 1.0, {
+    'dtype': 'generic'
+});
+
+var results = new Results();
+var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+// returns {...}
+
+console.log( out.toString() );
+```
+
+</section>
+
+<!-- /.examples -->
+
+<section class="references">
+
+</section>
+
+<!-- /.references -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</section>
+
+<!-- /.related -->
+
+<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
+
+<section class="links">
+
+[variance]: https://en.wikipedia.org/wiki/Variance
+
+[@stdlib/stats/base/ztest/alternatives]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/ztest/alternatives
+
+[@stdlib/stats/base/ztest/one-sample/results/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/ztest/one-sample/results/float64
+
+[@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
+
+[@stdlib/stats/strided/dztest2]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/dztest
+
+[@stdlib/stats/strided/sztest2]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/strided/sztest
+
+[mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray
+
+</section>
+
+<!-- /.links -->
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
new file mode 100644
index 000000000000..7c4ef7de04e3
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
@@ -0,0 +1,104 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var normal = require( '@stdlib/random/array/normal' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var pkg = require( './../package.json' ).name;
+var ztest2 = require( './../lib' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var results;
+	var x;
+	var y;
+
+	results = new Results();
+	x = normal( len, 0.0, 1.0, options );
+	y = normal( len, 0.0, 1.0, options );
+
+	return benchmark;
+
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+			if ( isnan( out.statistic ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( out.statistic ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( pkg+':len='+len, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
new file mode 100644
index 000000000000..9d92cc579945
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
@@ -0,0 +1,104 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var normal = require( '@stdlib/random/array/normal' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var pow = require( '@stdlib/math/base/special/pow' );
+var Results = require( '@stdlib/stats/base/ztest/one-sample/results/float64' );
+var pkg = require( './../package.json' ).name;
+var ztest2 = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var options = {
+	'dtype': 'generic'
+};
+
+
+// FUNCTIONS //
+
+/**
+* Creates a benchmark function.
+*
+* @private
+* @param {PositiveInteger} len - array length
+* @returns {Function} benchmark function
+*/
+function createBenchmark( len ) {
+	var results;
+	var x;
+	var y;
+
+	results = new Results();
+	x = normal( len, 0.0, 1.0, options );
+	y = normal( len, 0.0, 1.0, options );
+
+	return benchmark;
+
+	function benchmark( b ) {
+		var out;
+		var i;
+
+		b.tic();
+		for ( i = 0; i < b.iterations; i++ ) {
+			out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+			if ( isnan( out.statistic ) ) {
+				b.fail( 'should not return NaN' );
+			}
+		}
+		b.toc();
+		if ( isnan( out.statistic ) ) {
+			b.fail( 'should not return NaN' );
+		}
+		b.pass( 'benchmark finished' );
+		b.end();
+	}
+}
+
+
+// MAIN //
+
+/**
+* Main execution sequence.
+*
+* @private
+*/
+function main() {
+	var len;
+	var min;
+	var max;
+	var f;
+	var i;
+
+	min = 1; // 10^min
+	max = 6; // 10^max
+
+	for ( i = min; i <= max; i++ ) {
+		len = pow( 10, i );
+		f = createBenchmark( len );
+		bench( pkg+':len='+len, f );
+	}
+}
+
+main();
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
new file mode 100644
index 000000000000..c32274b297ea
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
@@ -0,0 +1,136 @@
+
+{{alias}}( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out )
+    Computes a two-sample Z-test for a strided array.
+
+    The `N` and stride parameters determine which elements in the strided array
+    are accessed at runtime.
+
+    Indexing is relative to the first index. To introduce an offset, use a typed
+    array view.
+
+    Parameters
+    ----------
+    N: integer
+        Number of indexed elements.
+
+    alternative: string
+        Alternative hypothesis. Must be one of the following:
+
+        - two-sided: mean is not equal to null value.
+        - greater: mean is larger than null value.
+        - less: mean is less than null value.
+
+    alpha: number
+        Significance level.
+
+    mu: number
+        Value of the mean under the null hypothesis.
+
+    sigmax: number
+        Known standard deviation of `x`.
+
+    x: Array|TypedArray|Object
+        Input array.
+
+    strideX: integer
+        Stride length for `x`.
+
+    sigmay: number
+        Known standard deviation of `y`.
+
+    y: Array|TypedArray|Object
+        Input array.
+
+    strideY: integer
+        Stride length for `y`.
+
+    out: Object
+        Output results object.
+
+    Returns
+    -------
+    out: Object
+        Results object.
+
+    Examples
+    --------
+    > var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+    > var x = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+    > var N = x.length;
+    > var alt = 'two-sided';
+    > var out = new {{alias:@stdlib/stats/base/ztest/two-sample/results/float64}}();
+    > var res = {{alias}}( N, alt, 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, out );
+    > res.toString()
+
+
+{{alias}}.ndarray( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay, y, strideY, offsetY, out )
+    Computes a two-sample Z-test for a strided array using alternative indexing
+    semantics.
+
+    While typed array views mandate a view offset based on the underlying
+    buffer, the offset parameter supports indexing semantics based on a starting
+    index.
+
+    Parameters
+    ----------
+    N: integer
+        Number of indexed elements.
+
+    alternative: string
+        Alternative hypothesis. Must be one of the following:
+
+        - two-sided: mean is not equal to null value.
+        - greater: mean is larger than null value.
+        - less: mean is less than null value.
+
+    alpha: number
+        Significance level.
+
+    mu: number
+        Value of the mean under the null hypothesis.
+
+    sigmax: number
+        Known standard deviation of `x`.
+
+    x: Array|TypedArray|Object
+        Input array.
+
+    strideX: integer
+        Stride length for `x`.
+
+    offsetX: integer
+        Starting index for `x`.
+
+    sigmay: number
+        Known standard deviation of `y`.
+
+    y: Array|TypedArray|Object
+        Input array.
+
+    strideY: integer
+        Stride length for `y`.
+
+    offsetY: integer
+        Starting index for `y`.
+
+    out: Object
+        Output results object.
+
+    Returns
+    -------
+    out: Object
+        Results object.
+
+    Examples
+    --------
+    > var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+    > var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+    > var N = x.length;
+    > var alt = 'two-sided';
+    > var out = new {{alias:@stdlib/stats/base/ztest/two-sample/results/float64}}();
+    > var res = {{alias}}.ndarray( N, alt, 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, out );
+    > res.toString()
+
+    See Also
+    --------
+
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
new file mode 100644
index 000000000000..0790e794fe26
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
@@ -0,0 +1,245 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// TypeScript Version: 4.1
+
+/// <reference types="@stdlib/types"/>
+
+import { NumericArray, Collection, AccessorArrayLike } from '@stdlib/types/array';
+
+/**
+* Input array.
+*/
+type InputArray = NumericArray | Collection<number> | AccessorArrayLike<number>;
+
+/**
+* Alternative hypothesis.
+*/
+type Alternative = 'two-sided' | 'greater' | 'less';
+
+/**
+* Interface describing options when serializing a results object to a string.
+*/
+interface Options {
+	/**
+	* Number of digits to display after decimal points. Default: 4.
+	*/
+	digits?: number;
+
+	/**
+	* Boolean indicating whether to show the test decision. Default: true.
+	*/
+	decision?: boolean;
+}
+
+/**
+* Serializes a results object as a string.
+*
+* @returns string representation
+*/
+type toString = ( options?: Options ) => string;
+
+/**
+* Serializes a results object as a JSON object.
+*
+* @returns JSON representation
+*/
+type toJSON = () => BaseResults;
+
+/**
+* Interface describing a "base" results object.
+*/
+interface BaseResults {
+	/**
+	* Boolean indicating whether the null hypothesis was rejected.
+	*/
+	rejected: boolean;
+
+	/**
+	* Alternative hypothesis.
+	*/
+	alternative: Alternative;
+
+	/**
+	* Significance level.
+	*/
+	alpha: number;
+
+	/**
+	* p-value.
+	*/
+	pValue: number;
+
+	/**
+	* Test statistic.
+	*/
+	statistic: number;
+
+	/**
+	* Confidence interval.
+	*/
+	ci: Float64Array;
+
+	/**
+	* Value of the mean under the null hypothesis
+	*/
+	nullValue: number;
+
+	/**
+	* Sample mean of `x`.
+	*/
+	xmean: number;
+
+	/**
+	* Sample mean of `y`.
+	*/
+	ymean: number;
+}
+
+/**
+* Interface describing a results object.
+*/
+interface Results extends BaseResults {
+	/**
+	* Serializes results as formatted test output.
+	*/
+	toString: toString;
+
+	/**
+	* Serializes results as JSON.
+	*/
+	toJSON: toJSON;
+}
+
+/**
+* Interface describing `ztest2`.
+*/
+interface Routine {
+	/**
+	* Computes a two-sample Z-test for a strided array.
+	*
+	* @param N - number of indexed elements
+	* @param alternative - alternative hypothesis
+	* @param alpha - significance level
+	* @param mu - mean under the null hypothesis
+	* @param sigmax - known standard deviation of `x`
+	* @param x - input array
+	* @param strideX - stride length for `x`
+	* @param sigmay - known standard deviation of `y`
+	* @param y - input array
+	* @param strideY - stride length for `y`
+	* @param out - output results object
+	* @returns results object
+	*
+	* @example
+	* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+	*
+	* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+	* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+	*
+	* var results = new Results();
+	* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+	* // returns {...}
+	*
+	* var bool = ( out === results );
+	* // returns true
+	*/
+	<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigmax: number, x: InputArray, strideX: number, sigmay: number, y: InputArray, strideY: number, out: T ): Results;
+
+	/**
+	* Computes a two-sample Z-test for a strided array using alternative indexing semantics.
+	*
+	* @param N - number of indexed elements
+	* @param alternative - alternative hypothesis
+	* @param alpha - significance level
+	* @param mu - mean under the null hypothesis
+	* @param sigmax - known standard deviation of `x`
+	* @param x - input array
+	* @param strideX - stride length for `x`
+	* @param offsetX - starting index for `x`
+	* @param sigmay - known standard deviation of `y`
+	* @param y - input array
+	* @param strideY - stride length for `y`
+	* @param offsetY - starting index for `y`
+	* @param out - output results object
+	* @returns results object
+	*
+	* @example
+	* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+	*
+	* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+	* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+	*
+	* var results = new Results();
+	* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+	* // returns {...}
+	*
+	* var bool = ( out === results );
+	* // returns true
+	*/
+	ndarray<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigmax: number, x: InputArray, strideX: number, offsetX: number, sigmay: number, y: InputArray, strideY: number, offsetY: number, out: T ): Results;
+}
+
+/**
+* Computes a two-sample Z-test for a strided array.
+*
+* @param N - number of indexed elements
+* @param alternative - alternative hypothesis
+* @param alpha - significance level
+* @param mu - mean under the null hypothesis
+* @param sigmax - known standard deviation of `x`
+* @param x - input array
+* @param strideX - stride length for `x`
+* @param sigmay - known standard deviation of `y`
+* @param y - input array
+* @param strideY - stride length for `y`
+* @param out - output results object
+* @returns results object
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*/
+declare var ztest2: Routine;
+
+
+// EXPORTS //
+
+export = ztest2;
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
new file mode 100644
index 000000000000..75632230aee3
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
@@ -0,0 +1,441 @@
+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+import Float64Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+import ztest2 = require( './index' );
+
+
+// TESTS //
+
+// The function returns a results object...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
+	ztest2( x.length, 'greater', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
+	ztest2( x.length, 'less', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
+}
+
+// The compiler throws an error if the function is provided a first argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( '10', 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( true, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( false, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( null, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( undefined, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( [], 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( {}, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a second argument which is not a valid string...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, '10', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 5, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, true, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, false, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, null, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, undefined, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, [], 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, {}, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, ( x: number ): number => x, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a third argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', '10', 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', true, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', false, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', null, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', undefined, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', [], 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', {}, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fourth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, '10', 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, true, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, false, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, null, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, undefined, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, [], 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, {}, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, ( x: number ): number => x, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a fifth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, '10', x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, true, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, false, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, null, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, undefined, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, [], x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, {}, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a sixth argument which is not an array-like object...
+{
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, 10, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, '10', 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, true, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, false, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, null, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, undefined, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, {}, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a seventh argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, '10', 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, true, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, false, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, null, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, undefined, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, [], 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, {}, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, ( x: number ): number => x, 1.0, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a eigth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, '10', y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, true, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, false, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, null, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, undefined, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, [], y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, {}, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, ( x: number ): number => x, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a ninth argument which is not an array-like object...
+{
+	const x = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, 10, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, '10', 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, true, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, false, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, null, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, undefined, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, {}, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, ( x: number ): number => x, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a tenth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, '10', new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, true, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, false, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, null, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, undefined, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, [], new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, {}, new Float64Results() ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, ( x: number ): number => x, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an eleventh argument which is not a results object...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, '10' ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, true ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, false ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, null ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, undefined ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, [] ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, {} ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2(); // $ExpectError
+	ztest2( x.length ); // $ExpectError
+	ztest2( x.length, 'two-sided' ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1 ); // $ExpectError
+	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results(), {} ); // $ExpectError
+}
+
+// Attached to main export is an `ndarray` method which returns a results object...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+	ztest2.ndarray( x.length, 'greater', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+	ztest2.ndarray( x.length, 'less', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+}
+
+// The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( '10', 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( true, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( false, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( null, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( undefined, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( [], 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( {}, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a valid string...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, '10', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 5, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, true, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, false, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, null, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, undefined, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, [], 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, {}, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, ( x: number ): number => x, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', '10', 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', true, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', false, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', null, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', undefined, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', [], 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', {}, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, '10', 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, true, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, false, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, null, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, undefined, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, [], 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, {}, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, ( x: number ): number => x, 1, 0.0, x, 1, 0, 0.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, '10', x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, true, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, false, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, null, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, undefined, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, [], x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, {}, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not an array-like object...
+{
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, 10, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, '10', 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, true, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, false, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, null, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, undefined, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, {}, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, '10', 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, true, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, false, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, null, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, undefined, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, [], 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, {}, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, ( x: number ): number => x, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, '10', 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, true, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, false, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, null, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, undefined, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, [], 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, {}, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, ( x: number ): number => x, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, '10', y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, true, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, false, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, null, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, undefined, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, [], y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, {}, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, ( x: number ): number => x, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not an array-like object...
+{
+	const x = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, 10, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, '10', 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, true, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, false, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, null, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, undefined, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, {}, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, ( x: number ): number => x, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a eleventh argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, '10', 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, true, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, false, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, null, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, undefined, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, [], 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, {}, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, ( x: number ): number => x, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an twelfth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, '10', new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, true, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, false, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, null, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, undefined, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, [], new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, {}, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, ( x: number ): number => x, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided a thirteenth argument which is not a results object...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, '10' ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, true ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, false ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, null ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, undefined ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, [] ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, {} ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, ( x: number ): number => x ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray(); // $ExpectError
+	ztest2.ndarray( x.length ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided' ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0 ); // $ExpectError
+	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results(), {} ); // $ExpectError
+}
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js b/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
new file mode 100644
index 000000000000..a17cb5960980
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
@@ -0,0 +1,36 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var normal = require( '@stdlib/random/array/normal' );
+var ztest2 = require( './../lib' );
+
+var x = normal( 1000, 0.0, 1.0, {
+	'dtype': 'generic'
+});
+var y = normal( 1000, 0.0, 1.0, {
+	'dtype': 'generic'
+});
+
+var results = new Results();
+var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+// returns {...}
+
+console.log( out.toString() );
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
new file mode 100644
index 000000000000..e2f5ddaa1eb1
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
@@ -0,0 +1,71 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+/**
+* Compute a two-sample Z-test for a strided array.
+*
+* @module @stdlib/stats/strided/ztest2
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+* var ztest2 = require( '@stdlib/stats/strided/ztest2' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+* var ztest2 = require( '@stdlib/stats/strided/ztest2' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*/
+
+// MODULES //
+
+var setReadOnly = require( '@stdlib/utils/define-nonenumerable-read-only-property' );
+var main = require( './main.js' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+setReadOnly( main, 'ndarray', ndarray );
+
+
+// EXPORTS //
+
+module.exports = main;
+
+// exports: { "ndarray": "main.ndarray" }
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
new file mode 100644
index 000000000000..10535d0a3329
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
@@ -0,0 +1,65 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var stride2offset = require( '@stdlib/strided/base/stride2offset' );
+var ndarray = require( './ndarray.js' );
+
+
+// MAIN //
+
+/**
+* Computes a two-sample Z-test for a strided array.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {string} alternative - alternative hypothesis
+* @param {number} alpha - significance level
+* @param {number} mu - mean under the null hypothesis
+* @param {PositiveNumber} sigmax - known standard deviation of `x`
+* @param {Collection} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {PositiveNumber} sigmay - known standard deviation of `y`
+* @param {Collection} y - input array
+* @param {integer} strideY - stride length for `y`
+* @param {Object} out - output results object
+* @returns {Object} results object
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*/
+function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out ) { // eslint-disable-line max-len, max-params
+	return ndarray( N, alternative, alpha, mu, sigmax, x, strideX, stride2offset( N, strideX ), sigmay, y, strideY, stride2offset( N, strideY ), out ); // eslint-disable-line max-len
+}
+
+
+// EXPORTS //
+
+module.exports = ztest2;
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
new file mode 100644
index 000000000000..27c9d8fe9a81
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
@@ -0,0 +1,155 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var quantile = require( '@stdlib/stats/base/dists/normal/quantile' ).factory;
+var cdf = require( '@stdlib/stats/base/dists/normal/cdf' ).factory;
+var mean = require( '@stdlib/stats/strided/mean' ).ndarray;
+var sqrt = require( '@stdlib/math/base/special/sqrt' );
+var abs = require( '@stdlib/math/base/special/abs' );
+var Float64Array = require( '@stdlib/array/float64' );
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+
+
+// VARIABLES //
+
+var normalCDF = cdf( 0.0, 1.0 );
+var normalQuantile = quantile( 0.0, 1.0 );
+
+// Initialize a workspace for storing confidence intervals:
+var WORKSPACE = new Float64Array( 2 );
+
+
+// MAIN //
+
+/**
+* Computes a two-sample Z-test for a strided array using alternative indexing semantics.
+*
+* @param {PositiveInteger} N - number of indexed elements
+* @param {string} alternative - alternative hypothesis
+* @param {number} alpha - significance level
+* @param {number} mu - mean under the null hypothesis
+* @param {PositiveNumber} sigmax - known standard deviation of `x`
+* @param {Collection} x - input array
+* @param {integer} strideX - stride length for `x`
+* @param {NonNegativeInteger} offsetX - starting index for `x`
+* @param {PositiveNumber} sigmay - known standard deviation of `y`
+* @param {Collection} y - input array
+* @param {integer} strideY - stride length for `y`
+* @param {NonNegativeInteger} offsetY - starting index for `y`
+* @param {Object} out - output results object
+* @returns {Object} results object
+*
+* @example
+* var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+*
+* var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
+* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
+*
+* var results = new Results();
+* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* // returns {...}
+*
+* var bool = ( out === results );
+* // returns true
+*/
+function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay, y, strideY, offsetY, out ) { // eslint-disable-line max-len, max-params
+	var pValue;
+	var stderr;
+	var xmean;
+	var ymean;
+	var xvar;
+	var yvar;
+	var stat;
+	var q;
+
+	if (
+		N <= 0 ||
+		isnan( alpha ) ||
+		isnan( mu ) ||
+		isnan( sigmax ) ||
+		isnan( sigmay ) ||
+		sigmax <= 0.0 ||
+		sigmay <= 0.0 ||
+		alpha < 0.0 ||
+		alpha > 1.0
+	) {
+		WORKSPACE[ 0 ] = NaN;
+		WORKSPACE[ 1 ] = NaN;
+		out.rejected = false;
+		out.alternative = alternative;
+		out.alpha = NaN;
+		out.pValue = NaN;
+		out.statistic = NaN;
+		out.ci = WORKSPACE;
+		out.nullValue = NaN;
+		out.xmean = NaN;
+		out.ymean = NaN;
+		return out;
+	}
+	// Compute the standard error of the mean:
+	xvar = sigmax * sigmax;
+	yvar = sigmay * sigmay;
+	stderr = sqrt( ( xvar / N ) + ( yvar / N ) );
+
+	// Compute the arithmetic mean of the input array:
+	xmean = mean( N, x, strideX, offsetX );
+	ymean = mean( N, y, strideY, offsetY );
+
+	// Compute the test statistic (i.e., the z-score, which is the distance of the sample mean from the population mean in units of standard error):
+	stat = ( xmean - ymean - mu ) / stderr;
+
+	// Compute the p-value and confidence interval...
+	if ( alternative === 'less' ) {
+		pValue = normalCDF( stat );
+		q = normalQuantile( 1.0 - alpha );
+		WORKSPACE[ 0 ] = NINF;
+		WORKSPACE[ 1 ] = mu + ( ( stat + q ) * stderr );
+	} else if ( alternative === 'greater' ) {
+		pValue = 1.0 - normalCDF( stat );
+		q = normalQuantile( 1.0 - alpha );
+		WORKSPACE[ 0 ] = mu + ( ( stat - q ) * stderr );
+		WORKSPACE[ 1 ] = PINF;
+	} else { // alt == 'two-sided'
+		pValue = 2.0 * normalCDF( -abs( stat ) );
+		q = normalQuantile( 1.0 - ( alpha / 2.0 ) );
+		WORKSPACE[ 0 ] = mu + ( ( stat - q ) * stderr );
+		WORKSPACE[ 1 ] = mu + ( ( stat + q ) * stderr );
+	}
+	// Return test results:
+	out.rejected = ( pValue <= alpha );
+	out.alternative = alternative;
+	out.alpha = alpha;
+	out.pValue = pValue;
+	out.statistic = stat;
+	out.ci = WORKSPACE;
+	out.nullValue = mu;
+	out.xmean = xmean;
+	out.ymean = ymean;
+	return out;
+}
+
+
+// EXPORTS //
+
+module.exports = ztest2;
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/package.json b/lib/node_modules/@stdlib/stats/strided/ztest2/package.json
new file mode 100644
index 000000000000..d89cfa87f3d2
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/package.json
@@ -0,0 +1,69 @@
+{
+  "name": "@stdlib/stats/strided/ztest2",
+  "version": "0.0.0",
+  "description": "Compute a two-sample Z-test for a strided array.",
+  "license": "Apache-2.0",
+  "author": {
+    "name": "The Stdlib Authors",
+    "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+  },
+  "contributors": [
+    {
+      "name": "The Stdlib Authors",
+      "url": "https://github.com/stdlib-js/stdlib/graphs/contributors"
+    }
+  ],
+  "main": "./lib",
+  "directories": {
+    "benchmark": "./benchmark",
+    "doc": "./docs",
+    "example": "./examples",
+    "lib": "./lib",
+    "test": "./test"
+  },
+  "types": "./docs/types",
+  "scripts": {},
+  "homepage": "https://github.com/stdlib-js/stdlib",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/stdlib-js/stdlib.git"
+  },
+  "bugs": {
+    "url": "https://github.com/stdlib-js/stdlib/issues"
+  },
+  "dependencies": {},
+  "devDependencies": {},
+  "engines": {
+    "node": ">=0.10.0",
+    "npm": ">2.7.0"
+  },
+  "os": [
+    "aix",
+    "darwin",
+    "freebsd",
+    "linux",
+    "macos",
+    "openbsd",
+    "sunos",
+    "win32",
+    "windows"
+  ],
+  "keywords": [
+    "stdlib",
+    "stdmath",
+    "statistics",
+    "stats",
+    "mathematics",
+    "math",
+    "strided",
+    "strided array",
+    "typed",
+    "array",
+    "ztest",
+    "z-test",
+    "hypothesis",
+    "testing",
+    "normality"
+  ],
+  "__stdlib__": {}
+}
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.js b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.js
new file mode 100644
index 000000000000..e1cc9c485d7f
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.js
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var ztest2 = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof ztest2, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'attached to the main export is a method providing an ndarray interface', function test( t ) {
+	t.strictEqual( typeof ztest2.ndarray, 'function', 'method is a function' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
new file mode 100644
index 000000000000..c6d434a806a2
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
@@ -0,0 +1,328 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var isfinite = require( '@stdlib/math/base/assert/is-finite' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var gfill = require( '@stdlib/blas/ext/base/gfill' ).ndarray;
+var normalFactory = require( '@stdlib/random/array/normal' ).factory;
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var ztest2 = require( './../lib' );
+
+
+// VARIABLES //
+
+var normal = normalFactory({
+	'seed': 12345
+});
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof ztest2, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=two-sided)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	out = ztest2( x.length, 'two-sided', 0.1, 100.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=greater)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 2.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'greater', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( out.ci[ 1 ], PINF, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'greater', 0.1, -1.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( out.ci[ 1 ], PINF, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=less)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 2.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'less', 0.1, -3.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'less', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( out.ci[ 0 ], NINF, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'less', 0.1, 1.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'less', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( out.ci[ 0 ], NINF, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+	x = normal( 10, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( 0, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( -1, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports a stride parameter', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+	var N;
+
+	N = 10000;
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1.0, y, 2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1.0, y, 2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports a negative stride parameter', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+	var N;
+
+	N = 10000;
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, 1.0, y, -2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, 1.0, y, -2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js
new file mode 100644
index 000000000000..890c330678fd
--- /dev/null
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js
@@ -0,0 +1,381 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var Float64Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
+var isfinite = require( '@stdlib/math/base/assert/is-finite' );
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var gfill = require( '@stdlib/blas/ext/base/gfill' ).ndarray;
+var normalFactory = require( '@stdlib/random/array/normal' ).factory;
+var PINF = require( '@stdlib/constants/float64/pinf' );
+var NINF = require( '@stdlib/constants/float64/ninf' );
+var ztest2 = require( './../lib/ndarray.js' );
+
+
+// VARIABLES //
+
+var normal = normalFactory({
+	'seed': 12345
+});
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof ztest2, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=two-sided)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	out = ztest2( x.length, 'two-sided', 0.1, 100.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=greater)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 2.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'greater', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( out.ci[ 1 ], PINF, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'greater', 0.1, -1.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( out.ci[ 1 ], PINF, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function performs a two-sample Z-test over a strided array (alternative=less)', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 2.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'less', 0.1, -3.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'less', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( out.ci[ 0 ], NINF, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10000, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( x.length, 'less', 0.1, 1.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'less', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( out.ci[ 0 ], NINF, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+
+	results = new Float64Results();
+	x = normal( 10, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( 10, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	out = ztest2( 0, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( -1, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports a stride parameter', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+	var N;
+
+	N = 10000;
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 0, 1.0, y, 2, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 0, 1.0, y, 2, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports a negative stride parameter', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+	var N;
+
+	N = 10000;
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, (N-1)*2, 1.0, y, -2, (N-1)*2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 1 );
+	gfill( N, NaN, y, 2, 1 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, (N-1)*2, 1.0, y, -2, (N-1)*2, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});
+
+tape( 'the function supports an offset parameter', function test( t ) {
+	var results;
+	var out;
+	var x;
+	var y;
+	var N;
+
+	N = 10000;
+	results = new Float64Results();
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 0.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 0 );
+	gfill( N, NaN, y, 2, 0 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1, 1.0, y, 2, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
+	x = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+	y = normal( N*2, 100.0, 1.0, {
+		'dtype': 'generic'
+	});
+
+	gfill( N, NaN, x, 2, 0 );
+	gfill( N, NaN, y, 2, 0 );
+
+	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1, 1.0, y, 2, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	// t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
+	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
+
+	t.end();
+});

From 64fd6dfa2fc09a54d5e4d53a1805f451c6098203 Mon Sep 17 00:00:00 2001
From: gururaj1512 <gururajgurram1512@gmail.com>
Date: Thu, 3 Jul 2025 19:44:14 +0000
Subject: [PATCH 2/3] refactor: update signature

---
 .../@stdlib/stats/strided/ztest2/README.md    |  29 +-
 .../strided/ztest2/benchmark/benchmark.js     |   2 +-
 .../ztest2/benchmark/benchmark.ndarray.js     |   4 +-
 .../stats/strided/ztest2/docs/repl.txt        |  60 ++-
 .../strided/ztest2/docs/types/index.d.ts      |  35 +-
 .../stats/strided/ztest2/docs/types/test.ts   | 508 ++++++++++--------
 .../stats/strided/ztest2/examples/index.js    |   6 +-
 .../@stdlib/stats/strided/ztest2/lib/index.js |   4 +-
 .../@stdlib/stats/strided/ztest2/lib/main.js  |  15 +-
 .../stats/strided/ztest2/lib/ndarray.js       |  47 +-
 .../stats/strided/ztest2/test/test.main.js    |  56 +-
 .../stats/strided/ztest2/test/test.ndarray.js |  70 ++-
 12 files changed, 458 insertions(+), 378 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/README.md b/lib/node_modules/@stdlib/stats/strided/ztest2/README.md
index 8e6dc8b634f7..09d10051c42c 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/README.md
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/README.md
@@ -46,7 +46,7 @@ Here, `μX` and `μY` are the true population means of samples `X` and `Y`, resp
 var ztest2 = require( '@stdlib/stats/strided/ztest2' );
 ```
 
-#### ztest2( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out )
+#### ztest2( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, y, strideY, out )
 
 Computes a two-sample Z-test for a strided array.
 
@@ -57,7 +57,7 @@ var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
 var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 
 var results = new Results();
-var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
 // returns {...}
 
 var bool = ( out === results );
@@ -66,14 +66,15 @@ var bool = ( out === results );
 
 The function has the following parameters:
 
--   **N**: number of indexed elements.
+-   **NX**: number of indexed elements in `x`.
+-   **NY**: number of indexed elements in `y`.
 -   **alternative**: [alternative hypothesis][@stdlib/stats/base/ztest/alternatives].
 -   **alpha**: significance level.
--   **mu**: mean value under the null hypothesis.
+-   **diff**: difference in means under the null hypothesis.
 -   **sigmax**: known standard deviation of `x`.
+-   **sigmay**: known standard deviation of `y`.
 -   **x**: input array.
 -   **strideX**: stride length for `x`.
--   **sigmay**: known standard deviation of `y`.
 -   **y**: input array.
 -   **strideY**: stride length for `y`.
 -   **out**: output [results object][@stdlib/stats/base/ztest/two-sample/results/float64].
@@ -87,7 +88,7 @@ var x = [ 4.0, 0.0, 4.0, 0.0, 6.0, 0.0, 6.0, 0.0, 5.0, 0.0 ];
 var y = [ 3.0, 0.0, 3.0, 0.0, 5.0, 0.0, 7.0, 0.0, 7.0, 0.0 ];
 
 var results = new Results();
-var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x, 2, 2.0, y, 2, results );
+var out = ztest2( 5, 5, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 2, y, 2, results );
 // returns {...}
 
 var bool = ( out === results );
@@ -109,14 +110,14 @@ var y0 = new Float64Array( [ 0.0, 3.0, 3.0, 5.0, 7.0, 7.0 ] );
 var y1 = new Float64Array( y0.buffer, y0.BYTES_PER_ELEMENT*1 ); // start at 2nd element
 
 var results = new Results();
-var out = ztest2( 5, 'two-sided', 0.05, 0.0, 1.0, x1, 1, 2.0, y1, 1, results );
+var out = ztest2( 5, 5, 'two-sided', 0.05, 0.0, 1.0, 2.0, x1, 1, y1, 1, results );
 // returns {...}
 
 var bool = ( out === results );
 // returns true
 ```
 
-#### ztest2.ndarray( N, alternative, alpha, mu, sigmax, x, strideX, offsetX,  sigmay, y, strideY, offsetY, out )
+#### ztest2.ndarray( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, offsetX, y, strideY, offsetY, out )
 
 Computes a two-sample Z-test for a strided array using alternative indexing semantics.
 
@@ -127,7 +128,7 @@ var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
 var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 
 var results = new Results();
-var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 // returns {...}
 
 var bool = ( out === results );
@@ -148,7 +149,7 @@ var x = [ 0.0, 4.0, 0.0, 4.0, 0.0, 6.0, 0.0, 6.0, 0.0, 5.0 ];
 var y = [ 0.0, 3.0, 0.0, 3.0, 0.0, 5.0, 0.0, 7.0, 0.0, 7.0 ];
 
 var results = new Results();
-var out = ztest2.ndarray( 5, 'two-sided', 0.05, 0.0, 1.0, x, 2, 1, 2.0, y, 2, 1, results );
+var out = ztest2.ndarray( 5, 5, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 2, 1, y, 2, 1, results );
 // returns {...}
 
 var bool = ( out === results );
@@ -182,15 +183,15 @@ var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
 var normal = require( '@stdlib/random/array/normal' );
 var ztest2 = require( '@stdlib/stats/strided/ztest2' );
 
-var x = normal( 1000, 0.0, 1.0, {
+var x = normal( 1000, 4.0, 2.0, {
     'dtype': 'generic'
 });
-var y = normal( 1000, 0.0, 1.0, {
+var y = normal( 800, 3.0, 2.0, {
     'dtype': 'generic'
 });
 
 var results = new Results();
-var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+var out = ztest2( x.length, y.length, 'two-sided', 0.05, 1.0, 2.0, 2.0, x, 1, y, 1, results );
 // returns {...}
 
 console.log( out.toString() );
@@ -222,7 +223,7 @@ console.log( out.toString() );
 
 [@stdlib/stats/base/ztest/alternatives]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/ztest/alternatives
 
-[@stdlib/stats/base/ztest/one-sample/results/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/ztest/one-sample/results/float64
+[@stdlib/stats/base/ztest/two-sample/results/float64]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/stats/base/ztest/two-sample/results/float64
 
 [@stdlib/array/base/accessor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/accessor
 
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
index 7c4ef7de04e3..ed6e2f2ff196 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.js
@@ -62,7 +62,7 @@ function createBenchmark( len ) {
 
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
-			out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+			out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 			if ( isnan( out.statistic ) ) {
 				b.fail( 'should not return NaN' );
 			}
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
index 9d92cc579945..dd7e08e39302 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/benchmark/benchmark.ndarray.js
@@ -24,7 +24,7 @@ var bench = require( '@stdlib/bench' );
 var normal = require( '@stdlib/random/array/normal' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
-var Results = require( '@stdlib/stats/base/ztest/one-sample/results/float64' );
+var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
 var pkg = require( './../package.json' ).name;
 var ztest2 = require( './../lib/ndarray.js' );
 
@@ -62,7 +62,7 @@ function createBenchmark( len ) {
 
 		b.tic();
 		for ( i = 0; i < b.iterations; i++ ) {
-			out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+			out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 			if ( isnan( out.statistic ) ) {
 				b.fail( 'should not return NaN' );
 			}
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
index c32274b297ea..5867a2c95aa8 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/repl.txt
@@ -1,5 +1,5 @@
 
-{{alias}}( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out )
+{{alias}}( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, y, strideY, out )
     Computes a two-sample Z-test for a strided array.
 
     The `N` and stride parameters determine which elements in the strided array
@@ -10,34 +10,37 @@
 
     Parameters
     ----------
-    N: integer
-        Number of indexed elements.
+    NX: integer
+        Number of indexed elements in `x`.
+
+    NY: integer
+        Number of indexed elements in `y`.
 
     alternative: string
         Alternative hypothesis. Must be one of the following:
 
-        - two-sided: mean is not equal to null value.
-        - greater: mean is larger than null value.
-        - less: mean is less than null value.
+        - two-sided: `x` has same mean as `y`
+        - greater: `x` has larger mean than `y`
+        - less: `x` has smaller mean than `y`
 
     alpha: number
         Significance level.
 
-    mu: number
-        Value of the mean under the null hypothesis.
+    diff: number
+        Difference in means under the null hypothesis.
 
     sigmax: number
         Known standard deviation of `x`.
 
+    sigmay: number
+        Known standard deviation of `y`.
+
     x: Array|TypedArray|Object
         Input array.
 
     strideX: integer
         Stride length for `x`.
 
-    sigmay: number
-        Known standard deviation of `y`.
-
     y: Array|TypedArray|Object
         Input array.
 
@@ -56,14 +59,15 @@
     --------
     > var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
     > var x = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
-    > var N = x.length;
+    > var NX = x.length;
+    > var NY = y.length;
     > var alt = 'two-sided';
     > var out = new {{alias:@stdlib/stats/base/ztest/two-sample/results/float64}}();
-    > var res = {{alias}}( N, alt, 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, out );
+    > var res = {{alias}}( NX, NY, alt, 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, out );
     > res.toString()
 
 
-{{alias}}.ndarray( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay, y, strideY, offsetY, out )
+{{alias}}.ndarray( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, offsetX, y, strideY, offsetY, out )
     Computes a two-sample Z-test for a strided array using alternative indexing
     semantics.
 
@@ -73,25 +77,31 @@
 
     Parameters
     ----------
-    N: integer
-        Number of indexed elements.
+    NX: integer
+        Number of indexed elements in `x`.
+
+    NY: integer
+        Number of indexed elements in `y`.
 
     alternative: string
         Alternative hypothesis. Must be one of the following:
 
-        - two-sided: mean is not equal to null value.
-        - greater: mean is larger than null value.
-        - less: mean is less than null value.
+        - two-sided: `x` has same mean as `y`
+        - greater: `x` has larger mean than `y`
+        - less: `x` has smaller mean than `y`
 
     alpha: number
         Significance level.
 
-    mu: number
-        Value of the mean under the null hypothesis.
+    diff: number
+        Difference in means under the null hypothesis.
 
     sigmax: number
         Known standard deviation of `x`.
 
+    sigmay: number
+        Known standard deviation of `y`.
+
     x: Array|TypedArray|Object
         Input array.
 
@@ -101,9 +111,6 @@
     offsetX: integer
         Starting index for `x`.
 
-    sigmay: number
-        Known standard deviation of `y`.
-
     y: Array|TypedArray|Object
         Input array.
 
@@ -125,10 +132,11 @@
     --------
     > var x = [ 4.0, 4.0, 6.0, 6.0, 5.0 ];
     > var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
-    > var N = x.length;
+    > var NX = x.length;
+    > var NY = y.length;
     > var alt = 'two-sided';
     > var out = new {{alias:@stdlib/stats/base/ztest/two-sample/results/float64}}();
-    > var res = {{alias}}.ndarray( N, alt, 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, out );
+    > var res = {{alias}}.ndarray( NX, NY, alt, 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, out );
     > res.toString()
 
     See Also
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
index 0790e794fe26..eea94746b44d 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/index.d.ts
@@ -96,7 +96,7 @@ interface BaseResults {
 	ci: Float64Array;
 
 	/**
-	* Value of the mean under the null hypothesis
+	* Difference in means under the null hypothesis
 	*/
 	nullValue: number;
 
@@ -133,14 +133,15 @@ interface Routine {
 	/**
 	* Computes a two-sample Z-test for a strided array.
 	*
-	* @param N - number of indexed elements
+	* @param NX - number of indexed elements in `x`
+	* @param NY - number of indexed elements in `y`
 	* @param alternative - alternative hypothesis
 	* @param alpha - significance level
-	* @param mu - mean under the null hypothesis
+	* @param diff - difference in means under the null hypothesis
 	* @param sigmax - known standard deviation of `x`
+	* @param sigmay - known standard deviation of `y`
 	* @param x - input array
 	* @param strideX - stride length for `x`
-	* @param sigmay - known standard deviation of `y`
 	* @param y - input array
 	* @param strideY - stride length for `y`
 	* @param out - output results object
@@ -153,26 +154,27 @@ interface Routine {
 	* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 	*
 	* var results = new Results();
-	* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+	* var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
 	* // returns {...}
 	*
 	* var bool = ( out === results );
 	* // returns true
 	*/
-	<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigmax: number, x: InputArray, strideX: number, sigmay: number, y: InputArray, strideY: number, out: T ): Results;
+	<T extends BaseResults>( NX: number, NY: number, alternative: Alternative, alpha: number, diff: number, sigmax: number, sigmay: number, x: InputArray, strideX: number, y: InputArray, strideY: number, out: T ): Results;
 
 	/**
 	* Computes a two-sample Z-test for a strided array using alternative indexing semantics.
 	*
-	* @param N - number of indexed elements
+	* @param NX - number of indexed elements in `x`
+	* @param NY - number of indexed elements in `y`
 	* @param alternative - alternative hypothesis
 	* @param alpha - significance level
-	* @param mu - mean under the null hypothesis
+	* @param diff - difference in means under the null hypothesis
 	* @param sigmax - known standard deviation of `x`
+	* @param sigmay - known standard deviation of `y`
 	* @param x - input array
 	* @param strideX - stride length for `x`
 	* @param offsetX - starting index for `x`
-	* @param sigmay - known standard deviation of `y`
 	* @param y - input array
 	* @param strideY - stride length for `y`
 	* @param offsetY - starting index for `y`
@@ -186,26 +188,27 @@ interface Routine {
 	* var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 	*
 	* var results = new Results();
-	* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+	* var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 	* // returns {...}
 	*
 	* var bool = ( out === results );
 	* // returns true
 	*/
-	ndarray<T extends BaseResults>( N: number, alternative: Alternative, alpha: number, mu: number, sigmax: number, x: InputArray, strideX: number, offsetX: number, sigmay: number, y: InputArray, strideY: number, offsetY: number, out: T ): Results;
+	ndarray<T extends BaseResults>( NX: number, NY: number, alternative: Alternative, alpha: number, diff: number, sigmax: number, sigmay: number, x: InputArray, strideX: number, offsetX: number, y: InputArray, strideY: number, offsetY: number, out: T ): Results;
 }
 
 /**
 * Computes a two-sample Z-test for a strided array.
 *
-* @param N - number of indexed elements
+* @param NX - number of indexed elements in `x`
+* @param NY - number of indexed elements in `y`
 * @param alternative - alternative hypothesis
 * @param alpha - significance level
-* @param mu - mean under the null hypothesis
+* @param diff - difference in means under the null hypothesis
 * @param sigmax - known standard deviation of `x`
+* @param sigmay - known standard deviation of `y`
 * @param x - input array
 * @param strideX - stride length for `x`
-* @param sigmay - known standard deviation of `y`
 * @param y - input array
 * @param strideY - stride length for `y`
 * @param out - output results object
@@ -218,7 +221,7 @@ interface Routine {
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
 * // returns {...}
 *
 * var bool = ( out === results );
@@ -231,7 +234,7 @@ interface Routine {
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 * // returns {...}
 *
 * var bool = ( out === results );
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
index 75632230aee3..189987f05a0a 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/docs/types/test.ts
@@ -27,9 +27,9 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
-	ztest2( x.length, 'greater', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
-	ztest2( x.length, 'less', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectType Results
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectType Results
+	ztest2( x.length, y.length, 'greater', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectType Results
+	ztest2( x.length, y.length, 'less', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectType Results
 }
 
 // The compiler throws an error if the function is provided a first argument which is not a number...
@@ -37,45 +37,44 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( '10', 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( true, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( false, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( null, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( undefined, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( [], 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( {}, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( '10', y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( true, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( false, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( null, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( undefined, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( [], y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( {}, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( ( x: number ): number => x, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a second argument which is not a valid string...
+// The compiler throws an error if the function is provided a second argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, '10', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 5, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, true, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, false, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, null, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, undefined, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, [], 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, {}, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, ( x: number ): number => x, 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, '10', 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, true, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, false, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, null, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, undefined, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, [], 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, {}, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a third argument which is not a number...
+// The compiler throws an error if the function is provided a third argument which is not a valid string...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', '10', 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', true, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', false, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', null, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', undefined, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', [], 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', {}, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, '10', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, true, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, false, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, null, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, undefined, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, [], 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, {}, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, ( x: number ): number => x, 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a fourth argument which is not a number...
@@ -83,14 +82,14 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, '10', 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, true, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, false, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, null, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, undefined, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, [], 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, {}, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, ( x: number ): number => x, 1.0, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', '10', 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', true, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', false, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', null, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', undefined, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', [], 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', {}, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a fifth argument which is not a number...
@@ -98,28 +97,29 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, '10', x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, true, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, false, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, null, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, undefined, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, [], x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, {}, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, '10', 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, true, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, false, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, null, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, undefined, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, [], 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, {}, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, ( x: number ): number => x, 1.0, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a sixth argument which is not an array-like object...
+// The compiler throws an error if the function is provided a sixth argument which is not a number...
 {
+	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, 10, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, '10', 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, true, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, false, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, null, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, undefined, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, {}, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, 1, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, '10', 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, true, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, false, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, null, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, undefined, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, [], 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, {}, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, 1.0, x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided a seventh argument which is not a number...
@@ -127,73 +127,89 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, '10', 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, true, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, false, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, null, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, undefined, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, [], 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, {}, 1.0, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, ( x: number ): number => x, 1.0, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, '10', x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, true, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, false, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, null, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, undefined, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, [], x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, {}, x, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, x, 1, y, 1, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the function is provided a eigth argument which is not an array-like object...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, 10, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, '10', 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, true, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, false, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, null, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, undefined, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, {}, 1, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, ( x: number ): number => x, 1, y, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a eigth argument which is not a number...
+// The compiler throws an error if the function is provided a ninth argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, '10', y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, true, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, false, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, null, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, undefined, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, [], y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, {}, y, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, ( x: number ): number => x, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, '10', y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, true, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, false, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, null, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, undefined, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, [], y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, {}, y, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, ( x: number ): number => x, y, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a ninth argument which is not an array-like object...
+// The compiler throws an error if the function is provided a tenth argument which is not an array-like object...
 {
 	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, 10, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, '10', 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, true, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, false, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, null, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, undefined, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, {}, 1, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, ( x: number ): number => x, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 10, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, '10', 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, true, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, false, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, null, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, undefined, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, {}, 1, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, ( x: number ): number => x, 1, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a tenth argument which is not a number...
+// The compiler throws an error if the function is provided a eleventh argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, '10', new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, true, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, false, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, null, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, undefined, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, [], new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, {}, new Float64Results() ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, ( x: number ): number => x, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, '10', new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, true, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, false, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, null, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, undefined, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, [], new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, {}, new Float64Results() ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, ( x: number ): number => x, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided an eleventh argument which is not a results object...
+// The compiler throws an error if the function is provided an twelfth argument which is not a results object...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, '10' ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, true ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, false ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, null ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, undefined ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, [] ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, {} ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, ( x: number ): number => x ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, '10' ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, true ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, false ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, null ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, undefined ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, [] ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, {} ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, ( x: number ): number => x ); // $ExpectError
 }
 
 // The compiler throws an error if the function is provided an unsupported number of arguments...
@@ -203,16 +219,17 @@ import ztest2 = require( './index' );
 
 	ztest2(); // $ExpectError
 	ztest2( x.length ); // $ExpectError
-	ztest2( x.length, 'two-sided' ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1 ); // $ExpectError
-	ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, new Float64Results(), {} ); // $ExpectError
+	ztest2( x.length, y.length ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided' ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1 ); // $ExpectError
+	ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, y, 1, new Float64Results(), {} ); // $ExpectError
 }
 
 // Attached to main export is an `ndarray` method which returns a results object...
@@ -220,9 +237,9 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
-	ztest2.ndarray( x.length, 'greater', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
-	ztest2.ndarray( x.length, 'less', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+	ztest2.ndarray( x.length, y.length, 'greater', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectType Results
+	ztest2.ndarray( x.length, y.length, 'less', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectType Results
 }
 
 // The compiler throws an error if the `ndarray` method is provided a first argument which is not a number...
@@ -230,45 +247,45 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( '10', 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( true, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( false, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( null, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( undefined, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( [], 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( {}, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( '10', y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( true, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( false, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( null, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( undefined, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( [], y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( {}, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( ( x: number ): number => x, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a second argument which is not a valid string...
+// The compiler throws an error if the `ndarray` method is provided a second argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, '10', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 5, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, true, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, false, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, null, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, undefined, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, [], 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, {}, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, ( x: number ): number => x, 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, '10', 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, true, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, false, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, null, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, undefined, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, [], 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, {}, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, ( x: number ): number => x, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a third argument which is not a number...
+// The compiler throws an error if the `ndarray` method is provided a third argument which is not a valid string...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', '10', 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', true, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', false, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', null, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', undefined, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', [], 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', {}, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, '10', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 5, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, true, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, false, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, null, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, undefined, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, [], 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, {}, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, ( x: number ): number => x, 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a fourth argument which is not a number...
@@ -276,14 +293,14 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, '10', 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, true, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, false, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, null, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, undefined, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, [], 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, {}, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, ( x: number ): number => x, 1, 0.0, x, 1, 0, 0.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', '10', 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', true, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', false, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', null, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', undefined, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', [], 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', {}, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', ( x: number ): number => x, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a fifth argument which is not a number...
@@ -291,28 +308,29 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, '10', x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, true, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, false, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, null, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, undefined, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, [], x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, {}, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, '10', 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, true, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, false, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, null, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, undefined, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, [], 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, {}, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, ( x: number ): number => x, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not an array-like object...
+// The compiler throws an error if the `ndarray` method is provided a sixth argument which is not a number...
 {
+	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, 10, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, '10', 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, true, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, false, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, null, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, undefined, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, {}, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, 1, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, '10', 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, true, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, false, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, null, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, undefined, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, [], 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, {}, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, 1.0, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a seventh argument which is not a number...
@@ -320,29 +338,29 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, '10', 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, true, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, false, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, null, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, undefined, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, [], 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, {}, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, ( x: number ): number => x, 0, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, '10', x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, true, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, false, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, null, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, undefined, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, [], x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, {}, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, ( x: number ): number => x, x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided an eighth argument which is not a number...
+// The compiler throws an error if the `ndarray` method is provided a eigth argument which is not an array-like object...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, '10', 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, true, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, false, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, null, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, undefined, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, [], 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, {}, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, ( x: number ): number => x, 1.0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, 10, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, '10', 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, true, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, false, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, null, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, undefined, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, {}, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, ( x: number ): number => x, 1, 0, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided a ninth argument which is not a number...
@@ -350,73 +368,89 @@ import ztest2 = require( './index' );
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, '10', y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, true, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, false, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, null, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, undefined, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, [], y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, {}, y, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, ( x: number ): number => x, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, '10', 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, true, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, false, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, null, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, undefined, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, [], 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, {}, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, ( x: number ): number => x, 0, y, 1, 0, new Float64Results() ); // $ExpectError
+}
+
+// The compiler throws an error if the `ndarray` method is provided an tenth argument which is not a number...
+{
+	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
+
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, '10', y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, true, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, false, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, null, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, undefined, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, [], y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, {}, y, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, ( x: number ): number => x, y, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a tenth argument which is not an array-like object...
+// The compiler throws an error if the `ndarray` method is provided a eleventh argument which is not an array-like object...
 {
 	const x = new Float64Array( 10 );
+	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, 10, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, '10', 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, true, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, false, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, null, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, undefined, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, {}, 1, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, ( x: number ): number => x, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, 10, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, '10', 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, true, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, false, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, null, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, undefined, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, {}, 1, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, ( x: number ): number => x, 1, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a eleventh argument which is not a number...
+// The compiler throws an error if the `ndarray` method is provided a twelfth argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, '10', 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, true, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, false, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, null, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, undefined, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, [], 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, {}, 0, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, ( x: number ): number => x, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, '10', 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, true, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, false, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, null, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, undefined, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, [], 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, {}, 0, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, ( x: number ): number => x, 0, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided an twelfth argument which is not a number...
+// The compiler throws an error if the `ndarray` method is provided an thirteenth argument which is not a number...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, '10', new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, true, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, false, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, null, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, undefined, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, [], new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, {}, new Float64Results() ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, ( x: number ): number => x, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, '10', new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, true, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, false, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, null, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, undefined, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, [], new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, {}, new Float64Results() ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, ( x: number ): number => x, new Float64Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided a thirteenth argument which is not a results object...
+// The compiler throws an error if the `ndarray` method is provided a fourteenth argument which is not a results object...
 {
 	const x = new Float64Array( 10 );
 	const y = new Float64Array( 10 );
 
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, '10' ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, true ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, false ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, null ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, undefined ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, [] ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, {} ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, ( x: number ): number => x ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, '10' ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, true ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, false ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, null ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, undefined ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, [] ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, {} ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, ( x: number ): number => x ); // $ExpectError
 }
 
 // The compiler throws an error if the `ndarray` method is provided an unsupported number of arguments...
@@ -426,16 +460,16 @@ import ztest2 = require( './index' );
 
 	ztest2.ndarray(); // $ExpectError
 	ztest2.ndarray( x.length ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided' ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0 ); // $ExpectError
-	ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, new Float64Results(), {} ); // $ExpectError
+	ztest2.ndarray( x.length, y.length ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0 ); // $ExpectError
+	ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, new Float64Results(), {} ); // $ExpectError
 }
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js b/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
index a17cb5960980..ef67a5e78259 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/examples/index.js
@@ -22,15 +22,15 @@ var Results = require( '@stdlib/stats/base/ztest/two-sample/results/float64' );
 var normal = require( '@stdlib/random/array/normal' );
 var ztest2 = require( './../lib' );
 
-var x = normal( 1000, 0.0, 1.0, {
+var x = normal( 1000, 4.0, 2.0, {
 	'dtype': 'generic'
 });
-var y = normal( 1000, 0.0, 1.0, {
+var y = normal( 800, 3.0, 2.0, {
 	'dtype': 'generic'
 });
 
 var results = new Results();
-var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+var out = ztest2( x.length, y.length, 'two-sided', 0.05, 1.0, 2.0, 2.0, x, 1, y, 1, results );
 // returns {...}
 
 console.log( out.toString() );
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
index e2f5ddaa1eb1..e20b10914b72 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/index.js
@@ -31,7 +31,7 @@
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
 * // returns {...}
 *
 * var bool = ( out === results );
@@ -45,7 +45,7 @@
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 * // returns {...}
 *
 * var bool = ( out === results );
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
index 10535d0a3329..078d4e9ce766 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/main.js
@@ -29,14 +29,15 @@ var ndarray = require( './ndarray.js' );
 /**
 * Computes a two-sample Z-test for a strided array.
 *
-* @param {PositiveInteger} N - number of indexed elements
-* @param {string} alternative - alternative hypothesis
+* @param {PositiveInteger} NX - number of indexed elements in `x`
+* @param {PositiveInteger} NY - number of indexed elements in `y`
+* @param {(integer|string)} alternative - alternative hypothesis
 * @param {number} alpha - significance level
-* @param {number} mu - mean under the null hypothesis
+* @param {number} diff - difference in means under the null hypothesis
 * @param {PositiveNumber} sigmax - known standard deviation of `x`
+* @param {PositiveNumber} sigmay - known standard deviation of `y`
 * @param {Collection} x - input array
 * @param {integer} strideX - stride length for `x`
-* @param {PositiveNumber} sigmay - known standard deviation of `y`
 * @param {Collection} y - input array
 * @param {integer} strideY - stride length for `y`
 * @param {Object} out - output results object
@@ -49,14 +50,14 @@ var ndarray = require( './ndarray.js' );
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 2.0, y, 1, results );
+* var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, y, 1, results );
 * // returns {...}
 *
 * var bool = ( out === results );
 * // returns true
 */
-function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, sigmay, y, strideY, out ) { // eslint-disable-line max-len, max-params
-	return ndarray( N, alternative, alpha, mu, sigmax, x, strideX, stride2offset( N, strideX ), sigmay, y, strideY, stride2offset( N, strideY ), out ); // eslint-disable-line max-len
+function ztest2( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, y, strideY, out ) { // eslint-disable-line max-len, max-params
+	return ndarray( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, stride2offset( NX, strideX ), y, strideY, stride2offset( NY, strideY ), out ); // eslint-disable-line max-len
 }
 
 
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
index 27c9d8fe9a81..57543f7ca880 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
@@ -20,6 +20,7 @@
 
 // MODULES //
 
+var resolveStr = require( '@stdlib/stats/base/ztest/alternative-resolve-str' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var quantile = require( '@stdlib/stats/base/dists/normal/quantile' ).factory;
 var cdf = require( '@stdlib/stats/base/dists/normal/cdf' ).factory;
@@ -45,15 +46,16 @@ var WORKSPACE = new Float64Array( 2 );
 /**
 * Computes a two-sample Z-test for a strided array using alternative indexing semantics.
 *
-* @param {PositiveInteger} N - number of indexed elements
-* @param {string} alternative - alternative hypothesis
+* @param {PositiveInteger} NX - number of indexed elements in `x`
+* @param {PositiveInteger} NY - number of indexed elements in `y`
+* @param {(integer|string)} alternative - alternative hypothesis
 * @param {number} alpha - significance level
-* @param {number} mu - mean under the null hypothesis
+* @param {number} diff - difference in means under the null hypothesis
 * @param {PositiveNumber} sigmax - known standard deviation of `x`
+* @param {PositiveNumber} sigmay - known standard deviation of `y`
 * @param {Collection} x - input array
 * @param {integer} strideX - stride length for `x`
 * @param {NonNegativeInteger} offsetX - starting index for `x`
-* @param {PositiveNumber} sigmay - known standard deviation of `y`
 * @param {Collection} y - input array
 * @param {integer} strideY - stride length for `y`
 * @param {NonNegativeInteger} offsetY - starting index for `y`
@@ -67,13 +69,13 @@ var WORKSPACE = new Float64Array( 2 );
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2.ndarray( x.length, 'two-sided', 0.05, 0.0, 1.0, x, 1, 0, 2.0, y, 1, 0, results );
+* var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 * // returns {...}
 *
 * var bool = ( out === results );
 * // returns true
 */
-function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay, y, strideY, offsetY, out ) { // eslint-disable-line max-len, max-params
+function ztest2( NX, NY, alternative, alpha, diff, sigmax, sigmay, x, strideX, offsetX, y, strideY, offsetY, out ) { // eslint-disable-line max-len, max-params
 	var pValue;
 	var stderr;
 	var xmean;
@@ -81,12 +83,15 @@ function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay,
 	var xvar;
 	var yvar;
 	var stat;
+	var alt;
 	var q;
 
+	alt = resolveStr( alternative );
 	if (
-		N <= 0 ||
+		NX <= 0 ||
+		NY <= 0 ||
 		isnan( alpha ) ||
-		isnan( mu ) ||
+		isnan( diff ) ||
 		isnan( sigmax ) ||
 		isnan( sigmay ) ||
 		sigmax <= 0.0 ||
@@ -97,7 +102,7 @@ function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay,
 		WORKSPACE[ 0 ] = NaN;
 		WORKSPACE[ 1 ] = NaN;
 		out.rejected = false;
-		out.alternative = alternative;
+		out.alternative = alt;
 		out.alpha = NaN;
 		out.pValue = NaN;
 		out.statistic = NaN;
@@ -110,40 +115,40 @@ function ztest2( N, alternative, alpha, mu, sigmax, x, strideX, offsetX, sigmay,
 	// Compute the standard error of the mean:
 	xvar = sigmax * sigmax;
 	yvar = sigmay * sigmay;
-	stderr = sqrt( ( xvar / N ) + ( yvar / N ) );
+	stderr = sqrt( ( xvar / NX ) + ( yvar / NY ) );
 
 	// Compute the arithmetic mean of the input array:
-	xmean = mean( N, x, strideX, offsetX );
-	ymean = mean( N, y, strideY, offsetY );
+	xmean = mean( NX, x, strideX, offsetX );
+	ymean = mean( NY, y, strideY, offsetY );
 
 	// Compute the test statistic (i.e., the z-score, which is the distance of the sample mean from the population mean in units of standard error):
-	stat = ( xmean - ymean - mu ) / stderr;
+	stat = ( xmean - ymean - diff ) / stderr;
 
 	// Compute the p-value and confidence interval...
-	if ( alternative === 'less' ) {
+	if ( alt === 'less' ) {
 		pValue = normalCDF( stat );
 		q = normalQuantile( 1.0 - alpha );
 		WORKSPACE[ 0 ] = NINF;
-		WORKSPACE[ 1 ] = mu + ( ( stat + q ) * stderr );
-	} else if ( alternative === 'greater' ) {
+		WORKSPACE[ 1 ] = diff + ( ( stat + q ) * stderr );
+	} else if ( alt === 'greater' ) {
 		pValue = 1.0 - normalCDF( stat );
 		q = normalQuantile( 1.0 - alpha );
-		WORKSPACE[ 0 ] = mu + ( ( stat - q ) * stderr );
+		WORKSPACE[ 0 ] = diff + ( ( stat - q ) * stderr );
 		WORKSPACE[ 1 ] = PINF;
 	} else { // alt == 'two-sided'
 		pValue = 2.0 * normalCDF( -abs( stat ) );
 		q = normalQuantile( 1.0 - ( alpha / 2.0 ) );
-		WORKSPACE[ 0 ] = mu + ( ( stat - q ) * stderr );
-		WORKSPACE[ 1 ] = mu + ( ( stat + q ) * stderr );
+		WORKSPACE[ 0 ] = diff + ( ( stat - q ) * stderr );
+		WORKSPACE[ 1 ] = diff + ( ( stat + q ) * stderr );
 	}
 	// Return test results:
 	out.rejected = ( pValue <= alpha );
-	out.alternative = alternative;
 	out.alpha = alpha;
 	out.pValue = pValue;
 	out.statistic = stat;
 	out.ci = WORKSPACE;
-	out.nullValue = mu;
+	out.alternative = alt;
+	out.nullValue = diff;
 	out.xmean = xmean;
 	out.ymean = ymean;
 	return out;
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
index c6d434a806a2..ce35684aa0ef 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.main.js
@@ -62,7 +62,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -71,7 +71,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
-	out = ztest2( x.length, 'two-sided', 0.1, 100.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 10.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -81,14 +81,14 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( 10000, 100.0, 1.0, {
+	x = normal( 10000, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( 10000, 100.0, 1.0, {
+	y = normal( 10000, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 2.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -116,7 +116,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'greater', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'greater', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
@@ -133,7 +133,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'greater', 0.1, -1.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'greater', 0.1, -1.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
@@ -154,14 +154,14 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	results = new Float64Results();
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( 10000, 0.0, 1.0, {
+	x = normal( 10000, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( 10000, 2.0, 1.0, {
+	y = normal( 10000, 0.0, 1.0, {
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'less', 0.1, -3.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'less', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'less', 'returns expected value' );
@@ -178,7 +178,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'less', 0.1, 1.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, y.length, 'less', 0.1, 1.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'less', 'returns expected value' );
@@ -190,7 +190,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.end();
 });
 
-tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
+tape( 'if provided an `NX` or `NY` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
 	var results;
 	var out;
 	var x;
@@ -204,14 +204,28 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu
 		'dtype': 'generic'
 	});
 
-	out = ztest2( 0, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( 0, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( -1, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
 	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
 	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
 
-	out = ztest2( -1, 'two-sided', 0.1, 0.0, 1.0, x, 1, 1.0, y, 1, results );
+	out = ztest2( x.length, 0, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( x.length, -1, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, y, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -242,7 +256,7 @@ tape( 'the function supports a stride parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1.0, y, 2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 2, y, 2, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -252,19 +266,19 @@ tape( 'the function supports a stride parameter', function test( t ) {
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( N*2, 100.0, 1.0, {
+	x = normal( N*2, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( N*2, 100.0, 1.0, {
+	y = normal( N*2, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1.0, y, 2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 10.0, 1.0, 1.0, x, 2, y, 2, results );
 	t.strictEqual( out, results, 'returns expected value' );
-	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
 	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
 	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
@@ -295,7 +309,7 @@ tape( 'the function supports a negative stride parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, 1.0, y, -2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, -2, y, -2, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -315,7 +329,7 @@ tape( 'the function supports a negative stride parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, 1.0, y, -2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, -2, y, -2, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js
index 890c330678fd..8ba65680c52f 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/test/test.ndarray.js
@@ -62,7 +62,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -71,7 +71,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.strictEqual( isfinite( out.ci[ 0 ] ), true, 'returns expected value' );
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
-	out = ztest2( x.length, 'two-sided', 0.1, 100.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 10.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -81,14 +81,14 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( 10000, 100.0, 1.0, {
+	x = normal( 10000, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( 10000, 100.0, 1.0, {
+	y = normal( 10000, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'two-sided', 0.1, 2.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -116,7 +116,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'greater', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'greater', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
@@ -133,7 +133,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'greater', 0.1, -1.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'greater', 0.1, -1.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'greater', 'returns expected value' );
@@ -154,14 +154,14 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	results = new Float64Results();
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( 10000, 0.0, 1.0, {
+	x = normal( 10000, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( 10000, 2.0, 1.0, {
+	y = normal( 10000, 0.0, 1.0, {
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'less', 0.1, -3.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'less', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'less', 'returns expected value' );
@@ -178,7 +178,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 		'dtype': 'generic'
 	});
 
-	out = ztest2( x.length, 'less', 0.1, 1.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, y.length, 'less', 0.1, 1.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'less', 'returns expected value' );
@@ -190,7 +190,7 @@ tape( 'the function performs a two-sample Z-test over a strided array (alternati
 	t.end();
 });
 
-tape( 'if provided an `N` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
+tape( 'if provided an `NX` or `NY` parameter less than or equal to `0`, the function returns `NaN` results', function test( t ) {
 	var results;
 	var out;
 	var x;
@@ -204,14 +204,28 @@ tape( 'if provided an `N` parameter less than or equal to `0`, the function retu
 		'dtype': 'generic'
 	});
 
-	out = ztest2( 0, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( 0, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( -1, y.length, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
 	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
 	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
 
-	out = ztest2( -1, 'two-sided', 0.1, 0.0, 1.0, x, 1, 0, 1.0, y, 1, 0, results );
+	out = ztest2( x.length, 0, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
+	t.strictEqual( out, results, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
+	t.strictEqual( isnan( out.statistic ), true, 'returns expected value' );
+	t.strictEqual( isnan( out.pValue ), true, 'returns expected value' );
+
+	out = ztest2( x.length, -1, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 1, 0, y, 1, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -242,7 +256,7 @@ tape( 'the function supports a stride parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 0, 1.0, y, 2, 0, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 2, 0, y, 2, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -252,19 +266,19 @@ tape( 'the function supports a stride parameter', function test( t ) {
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( N*2, 100.0, 1.0, {
+	x = normal( N*2, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( N*2, 100.0, 1.0, {
+	y = normal( N*2, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 0, 1.0, y, 2, 0, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 10.0, 1.0, 1.0, x, 2, 0, y, 2, 0, results );
 	t.strictEqual( out, results, 'returns expected value' );
-	t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
 	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
 	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );
@@ -295,7 +309,7 @@ tape( 'the function supports a negative stride parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, (N-1)*2, 1.0, y, -2, (N-1)*2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, -2, (N-1)*2, y, -2, (N-1)*2, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -305,17 +319,17 @@ tape( 'the function supports a negative stride parameter', function test( t ) {
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( N*2, 100.0, 1.0, {
+	x = normal( N*2, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( N*2, 100.0, 1.0, {
+	y = normal( N*2, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
 	gfill( N, NaN, x, 2, 1 );
 	gfill( N, NaN, y, 2, 1 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, -2, (N-1)*2, 1.0, y, -2, (N-1)*2, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 10.0, 1.0, 1.0, x, -2, (N-1)*2, y, -2, (N-1)*2, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, true, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -348,7 +362,7 @@ tape( 'the function supports an offset parameter', function test( t ) {
 	gfill( N, NaN, x, 2, 0 );
 	gfill( N, NaN, y, 2, 0 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1, 1.0, y, 2, 1, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 0.0, 1.0, 1.0, x, 2, 1, y, 2, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
 	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
@@ -358,19 +372,19 @@ tape( 'the function supports an offset parameter', function test( t ) {
 	t.strictEqual( isfinite( out.ci[ 1 ] ), true, 'returns expected value' );
 
 	// Generate an array with a sufficiently large sample size to effectively guarantee expected results:
-	x = normal( N*2, 100.0, 1.0, {
+	x = normal( N*2, 4.0, 1.0, {
 		'dtype': 'generic'
 	});
-	y = normal( N*2, 100.0, 1.0, {
+	y = normal( N*2, 2.0, 1.0, {
 		'dtype': 'generic'
 	});
 
 	gfill( N, NaN, x, 2, 0 );
 	gfill( N, NaN, y, 2, 0 );
 
-	out = ztest2( N, 'two-sided', 0.1, 0.0, 1.0, x, 2, 1, 1.0, y, 2, 1, results );
+	out = ztest2( N, N, 'two-sided', 0.1, 2.0, 1.0, 1.0, x, 2, 1, y, 2, 1, results );
 	t.strictEqual( out, results, 'returns expected value' );
-	// t.strictEqual( out.rejected, false, 'returns expected value' );
+	t.strictEqual( out.rejected, false, 'returns expected value' );
 	t.strictEqual( out.alternative, 'two-sided', 'returns expected value' );
 	t.strictEqual( isnan( out.statistic ), false, 'returns expected value' );
 	t.strictEqual( isnan( out.pValue ), false, 'returns expected value' );

From a5ea81bcb4e447ebca8d4a1cc177a173383f97c5 Mon Sep 17 00:00:00 2001
From: gururaj1512 <gururajgurram1512@gmail.com>
Date: Fri, 4 Jul 2025 14:39:17 +0000
Subject: [PATCH 3/3] fix: update ztest2 function call

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---
---
 lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
index 57543f7ca880..9ae463e4fe85 100644
--- a/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
+++ b/lib/node_modules/@stdlib/stats/strided/ztest2/lib/ndarray.js
@@ -69,7 +69,7 @@ var WORKSPACE = new Float64Array( 2 );
 * var y = [ 3.0, 3.0, 5.0, 7.0, 7.0 ];
 *
 * var results = new Results();
-* var out = ztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
+* var out = ztest2( x.length, y.length, 'two-sided', 0.05, 0.0, 1.0, 2.0, x, 1, 0, y, 1, 0, results );
 * // returns {...}
 *
 * var bool = ( out === results );