Refer to the exhibit:
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?
A00-240 Exam QuestionsBrowse all questions from this exam
A00-240 Exam - Question 8
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Correct Answer: A
The correct model based on the AIC statistic is the one with the lowest AIC value. From the exhibit, Model 2 with the variables Age, Weight, RunTime, RunPulse, and MaxPulse has the lowest AIC value of 56.2968. This indicates that this model is the champion model according to the AIC criterion.
Discussion
6 commentsDkonatOption: A
Oct 25, 2020But AIC is lower for A (Age Weight RunTime RunPulse MaxPulse)
KristytOption: A
Apr 11, 2021The question states based on the AIC - option A has the lowest AIC
PerkDizzzleOption: B
Oct 25, 2020The lower the AIC the better, this should be B
PerkDizzzleOption: B
Oct 27, 2020B is lower by .2 unless I'm missing something :-)
Krishna1985Option: A
Nov 16, 2020Option A has the Highest Adj RSq and the Lowest AIC. I think you are confused.
rh_214Option: A
Jan 10, 2021A 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.