feat: add sztest2, ztest, and ztest2 to namespace

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/lib/index.js

@@ -72,6 +72,15 @@ setReadOnly( ns, 'dmax', require( '@stdlib/stats/base/ndarray/dmax' ) );
 */
 setReadOnly( ns, 'dztest', require( '@stdlib/stats/base/ndarray/dztest' ) );
 
+/**
+* @name dztest2
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/dztest2}
+*/
+setReadOnly( ns, 'dztest2', require( '@stdlib/stats/base/ndarray/dztest2' ) );
+
 /**
 * @name max
 * @memberof ns
@@ -117,6 +126,33 @@ setReadOnly( ns, 'smax', require( '@stdlib/stats/base/ndarray/smax' ) );
 */
 setReadOnly( ns, 'sztest', require( '@stdlib/stats/base/ndarray/sztest' ) );
 
+/**
+* @name sztest2
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/sztest2}
+*/
+setReadOnly( ns, 'sztest2', require( '@stdlib/stats/base/ndarray/sztest2' ) );
+
+/**
+* @name ztest
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/ztest}
+*/
+setReadOnly( ns, 'ztest', require( '@stdlib/stats/base/ndarray/ztest' ) );
+
+/**
+* @name ztest2
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/base/ndarray/ztest2}
+*/
+setReadOnly( ns, 'ztest2', require( '@stdlib/stats/base/ndarray/ztest2' ) );
+
 
 // EXPORTS //