Question: Use the sample data from Problem 15.1 to answer the following questions: a. Construct a 95% confidence interval for the dependent variable when x1 =

Use the sample data from Problem 15.1 to answer the following questions:

a. Construct a 95% confidence interval for the dependent variable when x1 = 7 and x2 = 14.

b. Interpret the meaning of the interval constructed in part a.

c. Construct a 95% prediction interval for the dependent variable when x1 = 7 and x2 = 14.

d. Interpret the meaning of the interval constructed in part c.

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