Refer to the MegaStat/Excel Output for the Wilcoxon Rank Sum

question 21

Multiple Choice

Refer to the MegaStat/Excel output for the Wilcoxon rank sum test given in the table below.
At a significance level of .05,which one of the following rejection point conditions is correct regarding the null hypothesis H₀: D₁ and D₂ are identical probability distributions and the alternative hypothesis of H_a: D₁ is shifted to the left of D₂.

• A)Reject H₀ if T ≥ 83
• B)Reject H₀ if T ≤ 127
• C)Reject H₀ if T ≥ 131
• D)Reject H₀ if T ≤ 83
• E)Reject H₀ if T ≤ 79

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