It Has Been Hypothesized That Overall Academic Success for Freshmen

It has been hypothesized that overall academic success for freshmen at college as measured by
Grade point average (GPA) is a function of IQ scores (X1) , hours spent studying each week (X2) , and
One's high school average (X3) . Suppose the regression equation is:
Y' = -6.9 + 0.055X1 + 0.107X2 + 0.0083X3.
The multiple standard error is 6.313 and R2 = 0.826.How will a student's GPA be affected if an
Additional hour is spent studying each weeknight?

A) Increases by 0.535
B) Decreases by 0.535
C) Increases by 0.107
D) Decreases by 0.107
E) Increases by 0.0083