Question: . Consider the hypothesis test H0: 1 = 2 against H1: 1 < 2. Suppose that sample sizes n1 = 15, n2 = 15, that

. Consider the hypothesis test H0: 1 = 2 against H1: 1 < 2. Suppose that sample sizes n1 = 15, n2 = 15, that ????1 = 6.2 and ????2 = 7.8, and that ????1 2 = 4 and ????2 2 = 6.25. Assume that ????1 2 = ????2 2 and that the data are drawn from normal distribution. Use significance level =0.01

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