HW Solutions Stat 26

HW Solutions Stat 26 - . 397 1 . 782 1 c. Y = 124 . 3820 +...

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Chapter 9 BUILDING THE REGRESSION MODEL I: MODEL SELECTION AND VALIDATION 9.9. Variables in Model R 2 p AIC p C p PRESS p None 0 262.916 88.16 13,970.10 X 1 .6190 220.529 8.35 5,569.56 X 2 .3635 244.131 42.11 9,254.49 X 3 .4155 240.214 35.25 8,451.43 X 1 ,X 2 .6550 217.968 5.60 5,235.19 X 1 ,X 3 .6761 215.061 2.81 4,902.75 X 2 ,X 3 .4685 237.845 30.25 8,115.91 X 1 ,X 2 ,X 3 .6822 216.185 4.00 5,057.886 9.10. b. X 1 X 2 X 3 X 4 1 . 102 . 181 . 327 1 . 519
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Unformatted text preview: . 397 1 . 782 1 c. Y = 124 . 3820 + . 2957 X 1 + . 0483 X 2 + 1 . 3060 X 3 + . 5198 X 4 9.11. a. Subset R 2 a,p X 1 , X 3 , X 4 . 9560 X 1 , X 2 , X 3 , X 4 . 9555 X 1 , X 3 . 9269 X 1 , X 2 , X 3 . 9247 9.17. a. X 1 , X 3 b. .10 c. X 1 , X 3 d. X 1 , X 3 9-1...
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