Question: Problem 7.42 Refer to the dopamine b-hydroxylase (DBH) activity data set of Problem 1.40. (a) Construct a 95% confidence interval for the difference in the

Problem 7.42 Refer to the dopamine b-hydroxylase (DBH) activity data set of Problem 1.40.

(a) Construct a 95% confidence interval for the difference in the DBH activity between the two groups of patients.

(b) Construct a 95% confidence interval for the difference in the DBH activity between the two groups of patients.

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