Interpret Regression Output $= - 0.48 + 7.42 \mathrm { GPA }$

Interpret regression output.
-A sales manager was interested in determining if there is a relationship between
College GPA and sales performance among salespeople hired within the last year. A
Sample of recently hired salespeople was selected the number of units each sold last
Month recorded. Based on the regression results shown below, the residual standard
Deviation is The regression equation is
Units Sold $= - 0.48 + 7.42 \mathrm { GPA }$

$\begin{array} { l r r r r } \text { Predictor } & \text { Coef } & \text { SE Coef } & \text { T } & \text { P } \\ \text { Constant } & - 0.484 & 3.256 & - 0.15 & 0.884 \\ \text { GPA } & 7.423 & 1.044 & 7.11 & 0.000 \end{array}$

$$S = 1.57429 \quad \mathrm { R } - \mathrm { Sq } = 78.38 \quad \mathrm { R } - S q ( a d j ) = 76.8\%$$

A) 3.256
B) 1.044
C) 1.574
D) 34.70
E) None of the above.