Question: Study the output given here from a stepwise multiple regression analysis to predict y from four variables. Comment on the output at each step. STEPWISE
Study the output given here from a stepwise multiple regression analysis to predict y from four variables. Comment on the output at each step.

STEPWISE REGRESSION OF Y ON 4 PREDICTORS, WITH N = 63 STEP 1 CONSTANT 27.881 2 22.30 X3 0.89 T-RATIO 2.26 X2 12.38 T-RATIO 2.64 x4 0.0047 T-RATIO 2.01 S 16.52 9.47 R-SQ 42.39 68.20
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