Consider the following data for two independent random samples taken from two normal populations. Sample 1 11 8 14 Sample 2 7 6 7 (a) Compute the two sample mea means. 8 10 9 3 5 (b) Compute the two sample standard deviations. 8 (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 population means?

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