HW Solutions Stat 23

HW Solutions Stat 23 - a. Y = 4079 . 87 + 0 . 000935 X 2 c....

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c. s Y = 249 . 003, s 1 = 55274 . 6, s 2 = . 87738, s 3 = . 32260 b 1 = 249 . 003 55274 . 6 ( . 17472) = . 00079, b 2 = 249 . 003 . 87738 ( . 04639) = 13 . 16562, b 3 = 249 . 003 5 . 32260 ( . 80786) = 623 . 5572, b 0 = 4363 . 04 . 00079(302 , 693) +13 . 16562(7 . 37058) 623 . 5572(0 . 115385) = 4149 . 002. 7.18. a. ˆ Y = . 59067 X 1 . 11062 X 2 . 23393 X 3 b. R 2 12 = . 32262, R 2 13 = . 32456, R 2 23 = . 44957 c. s Y =17 . 2365, s 1 =8 . 91809, s 2 =4 . 31356, s 3 = . 29934, b 1 = 17 . 2365 8 . 91809 ( . 59067) = 1 . 14162, b 2 = 17 . 2365 4 . 31356 ( . 11062) = . 44203, b 3 = 17 . 2365 . 29934 ( . 23393) = 13 . 47008, b 0 =61 . 5652+1 . 14162(38 . 3913) + . 44203(50 . 4348)+13 . 47008(2 . 28696) = 158 . 4927 7.25.
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Unformatted text preview: a. Y = 4079 . 87 + 0 . 000935 X 2 c. No, SSR ( X 1 ) = 136 , 366, SSR ( X 1 | X 2 ) = 130 , 697 d. r 12 = . 0849 7.26. a. Y = 156 . 672 1 . 26765 X 1 . 920788 X 2 c. No, SSR ( X 1 ) = 8 , 275 . 3, SSR ( X 1 | X 3 ) = 3 , 483 . 89 No, SSR ( X 2 ) = 4 , 860 . 26, SSR ( X 2 | X 3 ) = 708 d. r 12 = . 5680, r 13 = . 5697, r 23 = . 6705 7-2...
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This note was uploaded on 12/21/2011 for the course STA 2014 taught by Professor Davehatley during the Fall '11 term at UNF.

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