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Can someone help me answer these questions please? 0 0 n Q Pia Mallows cx Vars R

ID: 3322936 • Letter: C

Question


Can someone help me answer these questions please?

0 0 n Q Pia Mallows cx Vars R-sq R-Sq(adi) Cp S ep y 1 81.3 79.8 6.1 7.8239 X 1 58.0 54.5 26.2 11.734 X 1 9.5 2.0 2 85.7 83.0 4.4 7.1630 X X 2 82.9 79.8 6.8 7.8193 X X 2 69.2 63.6 18.6 10.499 X X 3 88.4 84.94.0 6.7523 X X X 1 95 20 68.1 17.221 X A) Excluding the combination that includes all the variables, which variables would you consider to include into the model based on Mallows Cp criterion? (10 points) B) If you want to consider a regression model with just one independent variable, which one would you include according to R-Sq(adj) criterion? (10 points)

Explanation / Answer

a) The model with smallest Mallows Cp--  

which is 4 here (last row) - hence   Price , Prom Exp and quality

b)

  The model with largest R-Sq (adj) -- (79.8 here) hence - Price