Which of the distribution-free tests is roughly equivalent to the t test for two independent means?
A) the Mann-Whitney test
B) Wilcoxon's signed-ranks matched-pairs test
C) Friedman's test
D) the Kruskal-Wallis test

Question

Quizplus · Accepted Answer

The Mann-Whitney test is the nonparametric equivalent of the t-test for two independent samples. It tests whether the medians of two independent groups are equal or not, without making any assumptions about the underlying distributions of the data.

Which of the Distribution-Free Tests Is Roughly Equivalent to the T