Consider the data of Bethel et al. (1985), discussed in Problem 19 in Chapter 14. Delete the
Question:
a. Use the all possible regressions procedure to suggest a best model.
b. Consider a model with centered AGE, WEIGHT, HEIGHT, and their squares as predictors. Suggest a plausible forward chunkwise strategy for choosing a model, and implement it.
c. Use the all possible regressions procedure for the expanded model to choose a best model.
d. Compare results from parts (a), (b), and (c). What model seems most plausible? How do the data limit your conclusions?
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a The R 2 and Cp values are poor for all models It would be hard to argue that either of the multipl...View the full answer
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Related Book For 
Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
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