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Suppose you want to test the claim that μ1 = μ2. Two samples are randomly selected...

Suppose you want to test the claim that μ1 = μ2. Two samples are randomly selected from normal populations. The sample statistics are given below. Assume that σ 2 over 1 ≠ σ 2 over 2 . At a level of significance α=0.01, when should you reject H0? n1 = 25 n2 = 30 1 = 21 2 = 19 s1 = 1.5 s2 = 1.9

A. Reject H0 if the standardized test statistic is less than -2.492 or greater than 2.492.

B.Reject H0 if the standardized test statistic is less than -1.711 or greater than 1.711.

C. Reject H0 if the standardized test statistic is less than -2.797 or greater than 2.797.

D. Reject H0 if the standardized test statistic is less than -2.789 or greater than 2.797.

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