When the assumptions for the ANOVA test that populations are normally distributed and population variances are equal cannot be met, the __________ test can be used to compare three or more means.
A) Sign
B) Wilcoxon rank sum
C) z
D) Kruskal-Wallis

Question

Quizplus · Accepted Answer

When the assumptions for ANOVA cannot be met, the Kruskal-Wallis test can be used to compare three or more means. It is a nonparametric test that does not assume normality or equal variances.

When the Assumptions for the ANOVA Test That Populations Are