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SAS output from the RSQUARE selection method, within the REG procedure, is shown. The top two models in each subset are given. Based on the AIC statistic, which model is the champion model?
A is correct. Although, B's AIC is slightly lower- you have to also consider the Adj R2 and the R2 value- R2 is closer to the Adj R2 and the adj R2 is lower. That extra variable in B can be slight overfitting of the model.
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