Question: 12.48 Predicting leg press Refer to the previous exercise. MINITAB reports the tabulated results for observations at x = 25. a. Show how MINITAB got

12.48 Predicting leg press Refer to the previous exercise.

MINITAB reports the tabulated results for observations at x = 25.

Variable Leg Press Fit 365.7 Setting 25 SE Fit 5.02 95% CI

a. Show how MINITAB got the “Fit” of 365.7.

b. Using the predicted value and se value, explain how MINITAB got the interval listed under “95% CI.”
Interpret this interval.

c. Interpret the interval listed under “95% PI.”

Variable Leg Press Fit 365.7 Setting 25 SE Fit 5.02 95% CI (355.6, 375.7) 95% PI (292.6, 438.7)

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