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(g) (5 points) What brain weight would you predict for a subject who has a head size of 3100? Give an appropriate 95% Interval estimate for this...

This question was created from 2016S_Bsol.pdf https://www.coursehero.com/file/33832637/2016S-Bsolpdf/

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for this question , i dont know where to get SSx and, the next step it says s^2=MSE(1+1/n+...) , however in other past exam there is no one like . s^2 =MSE(1/n+...)

33832637-310780.jpeg

(g) (5 points) What brain weight would you predict for a subject who has a head size of 3100?
Give an appropriate 95% Interval estimate for this prediction as well.
Solution: Yo = 325.57342 + 0.26343(3100) = 1142.204
1 )
SS. = 31485993
83 { YA) = MSE
1+1 + ( Xx-X)2
1
= 5246.1(1+ 247
+
(3100-3634)-
31485993
= 5246.1(1.013276) = 5315.7473
1 )
95% PI for E[Yh] : Yh + (235,0.9758 { Ya} (1
1142.204 + 1.97 \/5315.7473
1142.204 + 143.63
(1

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