For the data of Exercise 12.15 on page 452, use the
Chapter 12, Problem 12.48(choose chapter or problem)
For the data of Exercise 12.15 on page 452, use the techniques of
(a) forward selection with a 0.05 level of significance to choose a linear regression model;
(b) backward elimination with a 0.05 level of significance to choose a linear regression model;
(c) stepwise regression with a 0.05 level of significance to choose a linear regression model.
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