A Mann-Whitney U test is performed and significant results are obtained. This indicates a population difference with regard to
A) central tendency
B) variability
C) shape
D) any or all of the above

Question

Quizplus · Accepted Answer

A Mann-Whitney U test is a non-parametric test that is used to compare the medians of two independent groups. A significant result indicates that there is a difference in the medians of the two groups, which could be due to a difference in central tendency, variability, or shape.

A Mann-Whitney U Test Is Performed and Significant Results Are