Compare two independent groups with the Mann–Whitney U test using ranked observations and a tie-corrected normal approximation.
Compare two independent groups with the Mann–Whitney U test using ranked observations and a tie-corrected normal approximation.
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No. Review effect size, confidence intervals, study design, assumptions, sampling and multiplicity together with the p-value.
This calculator uses a continuity-corrected normal approximation with tie correction. For very small samples or exact-inference requirements, confirm with software that provides exact permutation distributions.
