Consider the following data for two variables, x and y. xi 140 110 130 150 175...

Consider the following data for two variables, x and y.

x_i	140	110	130	150	175	160	125
y_i	150	100	125	120	135	135	115

a. Compute the standardized residuals for these data.

Observation 1
Observation 2
Observation 3
Observation 4
Observation 5
Observation 6
Observation 7

Solutions

Expert Solution

from above:

SSE =Syy-(Sxy)²/Sxx=

910.5839

	s² =SSE/(n-2)=	182.1168
std error σ =	=s=√s²=	13.4951

	residual			standardized
observations	e_t=(y-ŷ)	hi=1/n+(xi-x̅)²/SSx	si =s*√(1-hi)	residual=et/si
observation 1	24.96	0.1436	12.4889	1.9988
observation 2	-10.80	0.4793	9.7378	-1.1094
observation 3	4.71	0.1873	12.1654	0.3870
observation 4	-9.78	0.1679	12.3103	-0.7945
observation 5	-6.64	0.5268	9.2835	-0.7155
observation 6	0.47	0.2603	11.6062	0.0409
observation 7	-2.92	0.2348	11.8050	-0.2473

orchestra answered 1 year ago

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