HW Solutions Stat 108

HW Solutions Stat 108 - c. Yh = 82.297, scfw_pred = 4.857,...

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c. ˆ Y h =82 . 297, s { pred } =4 . 857, t ( . 975; 50) = 2 . 009, 82 . 297 ± 2 . 009(4 . 857), 72 . 54 Y h ( new ) 92 . 05 29.32. a. i 12345678 s 2 i .0164 .0173 .0804 .1100 .0010 .0079 .0953 .1134 log e s 2 i 4 . 109 4 . 058 2 . 521 2 . 207 6 . 949 4 . 838 2 . 351 2 . 176 b. d log e s 2 i = 3 . 651 + . 331 X i 1 +1 . 337 X i 2 . 427 X i 3 . 275 X i 4 . 209 X i 12 + . 240 X i 13 + . 477 X i 14 . X 2 appears to be active. c. ˆ v i = . 006819 (for i =1 , 2 , 5 , 6) ˆ v i = . 09887 (for i =3 , 4 , 7 , 8) d. ˆ Y i =7 . 5800 + . 0772 X i 1 e. From the location model: X 1 = +1; from the dispersion model:
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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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