Question: Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right. a. Assuming equal variances, conduct the

Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right. a. Assuming equal variances, conduct the test Upper H 0 : left parenthesis mu 1 minus mu 2 right parenthesis equals 0 against Upper H Subscript a Baseline : left parenthesis mu 1 minus mu 2 right parenthesis not equals 0 using alpha equals 0.05 . b. Find and interpret the 95% confidence interval for left parenthesis mu 1 minus mu 2 right parenthesis. Sample 1 Sample 2 n 1equals15 n 2equals13 x overbar 1equals5.9 x overbar 2equals7.4 s 1equals3.2 s 2equals4.2 Question content area bottom Part 1 a. Find the test statistic. The test statistic is enter your response here. (Round to two decimal places as needed.)

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