The Kruskal-Wallis test for the difference in population means is based on the variances of the sample observations.

Name: The Kruskal-Wallis test for the difference in population means is based on the variances of the sample observations.
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The Kruskal-Wallis test is actually based on the ranks of the observations, not their variances. It is a nonparametric test used to compare the medians of three or more independent groups.

The Kruskal-Wallis Test for the Difference in Population Means Is