If the null hypothesis is true and we run the Mann-Whitney test on data, the expectation is that the _____ in the two groups will be approximately equal.
A) means
B) ranks
C) variances
D) mean ranks

Question

Quizplus · Accepted Answer

The Mann-Whitney test is a non-parametric test that compares the distributions of two independent groups. If the null hypothesis is true, the mean ranks of the two groups should be approximately equal.

If the Null Hypothesis Is True and We Run the Mann-Whitney