HW Solutions Stat 13

HW Solutions Stat 13 - i: ei : Yi : 1 0.82324 105.17676 2 ....

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i : 1 2 . . . 59 60 e i : 0.82324 -1.55675 . . . -0.66689 8.09309 ˆ Y i : 105.17676 107.55675 . . . 70.66689 65.90691 d. Ascending order: 1 2 . . . 59 60 Ordered residual: -16.13683 -13.80686 . . . 13.95312 23.47309 Expected value: -18.90095 -15.75218 . . . 15.75218 18.90095 H 0 : Normal, H a : not normal. r =0 . 9897. If r 0 . 984 conclude H 0 , otherwise H a . Conclude H 0 . e. SSR =31 , 833 . 4, SSE =3 , 874 . 45, X 2 BP = (31 , 833 . 4 / 2) ÷ (3 , 874 . 45 / 60) 2 . 817116, χ 2 ( . 99; 1) = 6 . 63. If X 2 6 . 63 conclude error variance constant, otherwise error variance not constant. Con- clude error variance constant. Yes. 3.13. a. H 0 : E { Y } = β 0 + β 1 X , H a : E { Y } 6 = β 0 + β 1 X b. SSPE = 2797 . 66, SSLF = 618 . 719, F = (618 . 719 / 8) ÷ (2797 . 66 / 35)=0 . 967557, F ( . 95; 8 ,
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