Use stepwise regression with (F_{mathrm{IN}}=F_{text {OUT }}=4.0) to find the best set of regressor variables for the

Question:

Use stepwise regression with $F_{\mathrm{IN}}=F_{\text {OUT }}=4.0$ to find the "best" set of regressor variables for the Belle Ayr liquefaction data in Table B.5. Repeat the analysis with $F_{\mathrm{IN}}=F_{\mathrm{OUT}}=2.0$. Are there any substantial differences in the models obtained?

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