45. A regression analysis yields the line ý = 18 + 0.25x. One of the subjects, Mary, has æ = 40 and y %3D 32. (a) Calculate Mary's predicted value, ŷ. (b) Calculate Mary's residual.

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Q45.

44. A regression analysis yields the line
ŷ = 32 + 0.4x.
One of the subjects, Racheal, has æ = 60 and
y = 52.
(a) Calculate Racheal's predicted value, âŷ.
(b) Calculate Racheal's residual.
45. A regression analysis yields the line
ŷ = 18 + 0.25x.
One of the subjects, Mary, has æ = 40 and y =
32.
(a) Calculate Mary's predicted value, ĝ.
(b) Calculate Mary's residual.
Transcribed Image Text:44. A regression analysis yields the line ŷ = 32 + 0.4x. One of the subjects, Racheal, has æ = 60 and y = 52. (a) Calculate Racheal's predicted value, âŷ. (b) Calculate Racheal's residual. 45. A regression analysis yields the line ŷ = 18 + 0.25x. One of the subjects, Mary, has æ = 40 and y = 32. (a) Calculate Mary's predicted value, ĝ. (b) Calculate Mary's residual.
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