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)

Alpha = .05 (two-tailed)

Alpha = .10 (two-tailed)