diff --git a/lib/node_modules/@stdlib/stats/ztest/benchmark/benchmark.js b/lib/node_modules/@stdlib/stats/ztest/benchmark/benchmark.js
index 5515659cc458..d9d63a7c7b95 100644
--- a/lib/node_modules/@stdlib/stats/ztest/benchmark/benchmark.js
+++ b/lib/node_modules/@stdlib/stats/ztest/benchmark/benchmark.js
@@ -25,23 +25,30 @@ var randu = require( '@stdlib/random/base/randu' );
 var isObject = require( '@stdlib/assert/is-object' );
 var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
 var stdev = require( '@stdlib/stats/base/dists/uniform/stdev' );
+var format = require( '@stdlib/string/format' );
 var pkg = require( './../package.json' ).name;
 var ztest = require( './../lib' );
 
 
 // MAIN //
 
-bench( pkg, function benchmark( b ) {
+bench( pkg, benchmark );
+
+/**
+* Benchmark function.
+*
+* @private
+* @param {Benchmark} b - benchmark instance
+*/
+function benchmark( b ) {
 	var result;
 	var sigma;
-	var len;
 	var x;
 	var i;
 
-	x = new Array( 100 );
-	len = x.length;
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = randu()*50.0;
+	x = [];
+	for ( i = 0; i < 100; i++ ) {
+		x.push( randu()*50.0 );
 	}
 	sigma = stdev( 0.0, 50.0 );
 
@@ -59,20 +66,26 @@ bench( pkg, function benchmark( b ) {
 	}
 	b.pass( 'benchmark finished' );
 	b.end();
-});
+}
+
+bench( format( '%s::one-sided', pkg ), benchmark2 );
 
-bench( pkg+'::one-sided', function benchmark( b ) {
+/**
+* Benchmark function.
+*
+* @private
+* @param {Benchmark} b - benchmark instance
+*/
+function benchmark2( b ) {
 	var result;
 	var sigma;
 	var opts;
-	var len;
 	var x;
 	var i;
 
-	x = new Array( 100 );
-	len = x.length;
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = randu()*50.0;
+	x = [];
+	for ( i = 0; i < 100; i++ ) {
+		x.push( randu()*50.0 );
 	}
 	opts = {
 		'alternative': 'less'
@@ -93,21 +106,27 @@ bench( pkg+'::one-sided', function benchmark( b ) {
 	}
 	b.pass( 'benchmark finished' );
 	b.end();
-});
+}
+
+bench( format( '%s:print', pkg ), benchmark3 );
 
-bench( pkg+':print', function benchmark( b ) {
+/**
+* Benchmark function.
+*
+* @private
+* @param {Benchmark} b - benchmark instance
+*/
+function benchmark3( b ) {
 	var digits;
 	var result;
 	var output;
 	var sigma;
-	var len;
 	var x;
 	var i;
 
-	x = new Array( 100 );
-	len = x.length;
-	for ( i = 0; i < len; i++ ) {
-		x[ i ] = randu()*50.0;
+	x = [];
+	for ( i = 0; i < 100; i++ ) {
+		x.push( randu()*50.0 );
 	}
 	sigma = stdev( 0.0, 50.0 );
 	result = ztest( x, sigma );
@@ -128,4 +147,4 @@ bench( pkg+':print', function benchmark( b ) {
 	}
 	b.pass( 'benchmark finished' );
 	b.end();
-});
+}