options pageno=min nodate formdlim='-'; title 'Multiple Regression, Four Predictors'; run; data grades; infile 'C:\Users\Vati\Documents\_XYZZY\_Stats\StatData\multreg.dat'; input GPA GRE_Q GRE_V MAT AR; proc corr; proc reg; model GPA = GRE_Q -- AR / stb scorr2 tol vif; output out = hats p = GPA_hat; run; quit; proc corr; var GPA; with GPA_hat; run; proc GLM; model GPA = GRE_Q -- AR / ss1 EFFECTSIZE alpha=.10; run; quit;