In the Wilcoxon rank sum test,when sample sizes for two groups are equal,the null hypothesis is
A)the rank sum for each group will be equal,and any differences are due to sampling error.
B)the rank sum for one group will be equal to or higher than the other.
C)the rank sum for one group will be equal to or lower than the other.
D)high scores will be concentrated in one of the conditions.

Question

Quizplus · Accepted Answer

When sample sizes for two groups are equal, the null hypothesis in the Wilcoxon rank sum test is that the rank sum for each group will be equal, and any differences between the groups are due to sampling error. This means that there is no significant difference between the two groups, and any observed differences can be attributed to chance alone.

In the Wilcoxon Rank Sum Test,when Sample Sizes for Two