The Kruskal-Wallis test can be used to test for a difference between two populations. It will produce the same outcome as the two-tailed Wilcoxon rank sum test.

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The Kruskal-Wallis test is a non-parametric test used to compare two or more independent groups of samples. It is a generalization of the Wilcoxon rank sum test and can be used for more than two groups. The Kruskal-Wallis test produces the same outcomes as the two-tailed Wilcoxon rank sum test when comparing two groups.

The Kruskal-Wallis Test Can Be Used to Test for a Difference