To apply the Wilcoxon rank sum test to determine whether the location of population 1 is different from the location of population 2,the:
A)samples must not be drawn randomly.
B)samples must be drawn from matched pairs of observations.
C)samples must be independent.
D)sample size must be larger than 30.

Question

Quizplus · Accepted Answer

The Wilcoxon rank sum test is designed to compare two independent samples, meaning that they are not drawn from the same population and are not related in any way. Therefore, option C is the correct choice. Option A is incorrect because samples should be drawn randomly. Option B is incorrect because the Wilcoxon rank sum test does not require matched pairs. Option D is incorrect because the sample size requirement is not applicable for this test.

To Apply the Wilcoxon Rank Sum Test to Determine Whether