Using the Body Fat data set,

(a) regress Weight on the explanatory variables Height, Neck, Abdomen, Hip, Biceps, Forearm, and Wrist.

(b) regress Weight on the explanatory variables Height, Neck, Abdomen, and Hip.

(c) determine the importance of the explanatory variables Biceps, Forearm, and Wrist for predicting Weight.

(d) compute the value of BIC for both models.