Investopedia

Z-Test: Definition, Uses in Statistics, and Example

A z-test is statistical test used to determine whether two population means are different when the variances are known and the sample size is large. What Is a Z-Test? A z-test is a statistical test ...
Investopedia

Two-Tailed Test: Definition, Examples, and Importance in Statistics

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
JSTOR Daily

Test for Equality of Intraclass Correlation Coefficients under Unequal Family Sizes

The likelihood ratio test, the large-sample z-test, and the large-sample z*-test have been proposed to test for the equality of two intraclass correlation coefficients under unequal family sizes based ...
JSTOR Daily

A two-sample distribution-free test for functional data with application to a diffusion tensor imaging study of multiple sclerosis

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 65, No. 3 (APRIL 2016), pp. 395-414 (20 pages) Motivated by an imaging study, the paper develops a non-parametric testing ...