Mann-Whitney U Table

The following tables provide critical values for two tailed Mann-Whitney U tests for various levels of alpha. 

For one-tailed tests, simply double the value of alpha and use the appropriate two-tailed table.

Read the Mann-Whitney U Test tutorial here.

Alpha = .01 (two-tailed)

Mann-Whitney U Critical Values for Alpha = .01
Alpha = .05 (two-tailed)

Mann-Whitney U Critical Values for Alpha = .05
Alpha = .10 (two-tailed)

Mann-Whitney U Critical Values for Alpha = .10

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