(* PS7.3, using DATA7-3, to duplicate Table 7.2 *)
ols price const sqft
(* This is model E in Table 7.2 *)
ols price const sqft bedrms baths pool famroom firepl
(* omit variable with highest pvalue, one at a time *)
omit baths
omit bedrms
omit firepl
(* Model F *)
omit famroom
(* rerun full model for Wald test *)
ols price const sqft bedrms baths pool famroom firepl
(* Wald F-statistic for Models E and F is provided *)
omit bedrms baths famroom firepl

