Question: 11. Consider the following data for two independent random samples taken from two normal populations. Sample 1 10 7 13 7 9 8 Sample 2

11. Consider the following data for two independent random samples taken from two normal populations.

Sample 1 10 7 13 7 9 8 Sample 2 8 7 8 4 6 9

a. Compute the two sample means.

b. Compute the two sample standard deviations.

c. What is the point estimate of the difference between the two population means?

d. What is the 90% confidence interval estimate of the difference between the two pop ulation means?

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