From among the candidate variables given in Problem 9.11, find the subset of three variables that best predicts height in the oldest child, separately for boys and girls. Are the two sets the same?...

From among the candidate variables given in Problem 9.11, find the subset of three variables that best predicts height in the oldest child, separately for boys and girls. Are the two sets the same? Find the best subset of three variables for the group as a whole. Does adding OCSEX into the regression equation improve the fit?

PROBLEM 9.11

Using the methods described in this chapter and the family lung function data described in Appendix A, and choosing from among the variables OCAGE, OCWEIGHT, MHEIGHT, MWEIGHT, FHEIGHT, and FWEIGHT, select the variables that best predict height in the oldest child. Show your analysis