Mann-Whitney U Test Calculator
Enter values for both independent groups. This non-parametric test compares distributions without assuming normality.
At least 2 values required
At least 2 values required
Exact inference enumerates up to 200,000 assignments to groups, including ties. Above that limit, automatic mode explicitly uses the normal approximation. Two-sided exact p is twice the smaller inclusive tail, capped at 1.
Significance Level:
Alternative Hypothesis:
