Question: Data from two independent normal random samples are shown below: Sample 1: 5.8 5.1 3.9 4.5 5.4 Sample 2: 4.4 6.1 5.2 5.7 Assume the

Data from two independent normal random samples are shown below:

Sample 1:

5.8 5.1 3.9 4.5 5.4 Sample 2:

4.4 6.1 5.2 5.7

Assume the population variances are identical but unknown. a. Test 1 < 2 using = 0.01 b. Construct a 90% confidence interval for the difference in the means.

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