The null hypothesis for the Mann-Whitney U test is that the
A) sample means are the same
B) population means are the same
C) sample distributions are the same
D) population distributions are the same.

Question

Quizplus · Accepted Answer

The Mann-Whitney U test is a non-parametric test used to compare two independent samples. The null hypothesis for this test is that the population distributions from which the two samples are drawn are the same. It does not assume anything about the means of the populations.

The Null Hypothesis for the Mann-Whitney U Test Is That