Which is a characteristic of the Kruskal-Wallis test?
A)It is rarely used because it assumes normality.
B)It assumes equal population means.
C)It is useful in comparing the medians in c groups.
D)It requires at least 5 groups of identical size.

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is a non-parametric test, meaning it does not assume normality. It is useful in comparing the medians in c groups, making C the correct answer. A is incorrect because the Kruskal-Wallis test does not assume normality. B is incorrect because the Kruskal-Wallis test does not assume equal population means. D is incorrect because the Kruskal-Wallis test does not require a specific number of groups or identical group sizes.

Which Is a Characteristic of the Kruskal-Wallis Test