13.13 Veggie-Burgers II Refer to Exercise 13.12. A command in the MINITAB regression menu provides output in which R2 and R2(adj) are calculated for all possible subsets of the four independent variables. The printout is provided here.

a. If you had to compare these models and choose the best one, which model would you choose? Explain.

b. Comment on the usefulness of the model you chose in part

a. Is your model valuable in predicting a taste score based on the chosen predictor variables?

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MINITAB output for Exercise 13.13 Best Subsets Regression: y versus x1, x2, x3, x4 Response is y R-Sq Mallows xxxx Vars R-Sq (adj) C-p S 1 2 3 4 1 17.0 8.7 3.6 13.697 x 1 6.9 0.0 5.0 14.506 X 2 37.2 23.3 2.8 12.556 X X 2 20.3 2.5 5.1 14.153 x x 3 48.9 29.7 3.1 12.020 X X X 3 39.6 16.9 4.4 13.066 X X X 4 49.9 21.3 5.0 12.720 X X X X