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OpenStudy (anonymous):
An instructor computed a least squares regression line to predict final course percentage based on Exam 1. She got the following formula: yhat=34.28+0.5897x. Suppose that a student who made a grade of 76 on Exam 1 had a final percentage grade of 81.05%. What is the residual? A. 6.08 B. -6.08 C. 1.95 D. -1.95
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OpenStudy (anonymous):
34.28+0.5897*76=79.09 81.05-79.09=1.96 so C since the result is above the predicted percentage
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