The Wilcoxon rank sum test for comparing two independent samples tests which of the following hypotheses? A)H₀: median₁ = median₂ for two distributions having the same shape vs. H_a: median₁ $\neq$median₂. B)H₀: the two distributions are the same vs, H_a: one distribution has values systematically larger than the other. C)Both options (a)and (b). D)None of the answer options is correct.

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The Wilcoxon rank sum test is a non-parametric test that compares the medians of two independent samples. The null hypothesis is that the medians of the two distributions are equal, while the alternative hypothesis is that the medians are not equal.

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