Question: Use the data from Exercise 12.16 on page 473. 1. Estimate using the multiple regression of y on x , x , and x

Use the data from Exercise 12.16 on page 473.

1. Estimate σ using the multiple regression of y on x , x , and x , 2. Compute a 95% prediction interval for the observed gain with the three regressors at x = 15.0, x = 220.0, and x = 6.0.

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