Mann Whitney U Test Example

Mann Whitney U Test Example. Mann whitney test worked example. The mann whitney test is an alternative for the independent samples t test when the assumptions required by the latter aren t met by the data.

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Unlike its parametric counterpart the t test for two samples this test does not assume that the difference between the samples is normally distributed or that the variances of the two populations are equal. Your variable of interest should be continuous and your 2 groups should have similar values on your variable of interest. Where r 1 sum of the ranks for group 1 and r 2 sum of the ranks for group 2. Learn and reinforce your understanding of mann whitney u test.