Statistics: IQ Score (X) and Exam Score (Y)
posted by Joy Chapman on .
Assuming that the regression equation for the relationship between IQ score and psychology exam score is Y' = 9+ 0.274X, what would you expect the psychology exam scores to be for the following individuals given their IQ exam scores?
Individual
Tim
Tom
Tina
Tory
IQ Score (X)
Tim's IQ Score (X) = 118
Tom's IQ Score (X) = 98
Tina's IQ Score (X) = 107
Tory's IQ Score (X) = 103
Psychology Exam Score (Y)
Tim =
Tom =
Tina =
Tory =

Substitute each score for X in the regression equation and solve for predicted y (Y').

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Tim= 41
Tom=36
Tina= 38
Tory =37
Y'=9+0.274(118)
Y'=41.332 
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