In order to perform the ________________ test,all of the observations in two samples are combined into a single set and all of the values in the single set are ranked from smallest to largest.
A)Wilcoxon Rank Sum
B)Kruskal-Wallis
C)Wilcoxon signed rank
D)Sign Test

Question

Quizplus · Accepted Answer

The Wilcoxon Rank Sum test (also known as Mann-Whitney U test) requires ranking of all observations in two samples combined into a single set. The Kruskal-Wallis test is used when there are more than two independent samples and tests for differences in medians. The Wilcoxon signed rank test is used for paired data, and the Sign test is used for testing the hypothesis about the median of a population.

In Order to Perform the ________________ Test,all of the Observations