Question: Answer the following questions based on the data from Problem 14.73. a. Calculate the coefficient of determination. b. Test the significance of the population coefficient

Answer the following questions based on the data from Problem 14.73.

a. Calculate the coefficient of determination.

b. Test the significance of the population coefficient of determination using a = 0.05.

c. Construct a 95% confidence interval for the average order size for a 40-year-old customer.

d. Construct a 95% prediction interval for the order size for Rick, who is a 40-year-old customer.

e. Verify your results from parts c and d with PHStat.

AppendixLO1

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