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In exercise 18 the data on grade point average x

In exercise 18, the data on grade point average x and monthly salary y provided the estimated regression equation y = 1790.5 + 581.1x.

a. Develop a 95% confidence interval for the mean starting salary for all students with a 3.0 GPA.

b. Develop a 95% prediction interval for the starting salary for Joe Heller, a student with a GPA of 3.0.

a. Develop a 95% confidence interval for the mean starting salary for all students with a 3.0 GPA.

b. Develop a 95% prediction interval for the starting salary for Joe Heller, a student with a GPA of 3.0.

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