Question: Problem 8.49 Refer to the lead absorption data set of Problem 1.18. The paired sample t-test assumes that the data in the difference column are

Problem 8.49 Refer to the lead absorption data set of Problem 1.18. The paired sample t-test assumes that the data in the difference column are normally distributed. Test the third column (difference) for normality by applying the Shapiro–Wilk test. State the alternatives, decision rule, and conclusion.

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