A psychology student wanted to examine the value of predicting GPAs based on IQ scores. She recruited undergraduate students enrolled in an introductory psychology class and administered the IQ test (M = 100.260, SD = 12.985) and requested their GPAs from the registrar’s office (M = 2.456, SD = .861). Consistent with many previous reports, the student found that IQ was significantly correlated with GPA, r(86) = .497, p

Question

A psychology student wanted to examine the value of predicting GPAs based on IQ scores. She recruited undergraduate students enrolled in an introductory psychology class and administered the IQ test (M = 100.260, SD = 12.985) and requested their GPAs from the registrar’s office (M = 2.456, SD = .861). Consistent with many previous reports, the student found that IQ was significantly correlated with GPA, r(86) = .497, p < .001.
	
Find a) sY-Ŷ.	, b) covXY., and c) the equation for the regression line. Round to three decimal places.

Thomas · Answer

Final Part of the problem: Find a) sY-Ŷ. , b) covXY., and c) the equation for the regression line. Round to three decimal places.