The critical value for a one-tailed Mann-Whitney U test with sample sizes of n₁ = 10 and n₂ = 10 is 23 for a 0.05 level of significance.

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The critical value for a one-tailed Mann-Whitney U test with sample sizes of n1 = 10 and n2 = 10 at a 0.05 significance level is not 23; it is typically found using statistical tables or software, and for these sample sizes, it is usually around 27.

The Critical Value for a One-Tailed Mann-Whitney U Test with Sample