Mathematics · Non-Parametric Tests
We use the Mann-Whitney U test for testing the equality of means (or medians) of two populations if:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The samples are unequal in size.
- 2The samples are from normal populations with known variances.
- 3The samples are from non-normal populations.✓
- 4The samples are from normal populations with unknown variances.
Correct answer
The samples are from non-normal populations.
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