diff --git a/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/index.d.ts b/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/index.d.ts
index 7e8ea4930deb..0aea2ccf39b8 100644
--- a/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/index.d.ts
+++ b/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/index.d.ts
@@ -68,6 +68,59 @@ interface Results {
 	method: string;
 }
 
+/**
+* Interface describing a serialized results object.
+*/
+interface ResultsJSON {
+	/**
+	* Boolean indicating whether the null hypothesis was rejected.
+	*/
+	rejected: boolean;
+
+	/**
+	* Alternative hypothesis.
+	*/
+	alternative: string;
+
+	/**
+	* Significance level.
+	*/
+	alpha: number;
+
+	/**
+	* p-value.
+	*/
+	pValue: number;
+
+	/**
+	* Test statistic.
+	*/
+	statistic: number;
+
+	/**
+	* Confidence interval.
+	*/
+	ci: {
+		type: string;
+		data: Array<number>;
+	};
+
+	/**
+	* Value of the mean under the null hypothesis.
+	*/
+	nullValue: number;
+
+	/**
+	* Standard error of the mean.
+	*/
+	sd: number;
+
+	/**
+	* Test method.
+	*/
+	method: string;
+}
+
 /**
 * Serializes a one-sample Z-test results object as a JSON object.
 *
@@ -92,7 +145,7 @@ interface Results {
 * var obj = res2json( results );
 * // returns {...}
 */
-declare function res2json( results: Results ): Results;
+declare function res2json( results: Results ): ResultsJSON;
 
 
 // EXPORTS //
diff --git a/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/test.ts b/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/test.ts
index f1bfa2bcb772..2fa69a039cce 100644
--- a/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/test.ts
+++ b/lib/node_modules/@stdlib/stats/base/ztest/one-sample/results/to-json/docs/types/test.ts
@@ -34,7 +34,7 @@ import res2json = require( './index' );
 		'alternative': 'two-sided',
 		'method': 'One-sample Z-test'
 	};
-	res2json( res ); // $ExpectType Results
+	res2json( res ); // $ExpectType ResultsJSON
 }
 
 // The compiler throws an error if not provided a results object...