HG090 Mann-Whitney/Wilcoxon Hypothesis Test

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The Wilcoxon-Mann-Whitney test uses the ranks of data to test the hypothesis that two samples of sizes m and n might come from the same population.

This .tns file calculates all of the possible rank sums that arise from given samples of size n and m.

It does not conduct the test itself, but it was designed to show to students the symmetrical nature of the combinatorial 'distribution' underlying the test.