For the Mann-Whitney U test,we reject the null hypothesis when ______.
A) values of U are greater than or equal to the critical value
B) values of U are less than or equal to .05
C) values of U are less than or equal to the critical value
D) values of U are closer to ± 1.0

Question

Quizplus · Accepted Answer

The Mann-Whitney U test rejects the null hypothesis when the calculated U value is less than or equal to the critical value. This means that the observed difference between the two groups being compared is statistically significant, and we can conclude that there is a significant difference between the two groups. Choice B is incorrect because U values are not typically compared to .05 in this test. Choice A is also incorrect because it suggests a two-tailed test, whereas the Mann-Whitney U test is typically a one-tailed test. Choice D is incorrect because U values closer to ± 1.0 do not have any specific meaning in this context.

For the Mann-Whitney U Test,we Reject the Null Hypothesis When