Question

The estimated regression equation for a model involving two independent variables and 10 observations follows.
^
y = 25.0793 + 0.6944x1 + 0.8028x2

a. Interpret and in this estimated regression equation.
b1 = ____
Select your answer: y changes by 0.6944 when x1 increases by 1 unit and x2 stays the same
       y changes by 0.6944 when x2 increases by 1 unit and x1 stays the same
       y changes by 0.8028 when x1 increases by 1 unit and x2 stays the same
       y changes by 0.8028 when x2 increases by 1 unit and x1 stays the same

b2 = ____
Select your answer: y changes by 0.6944 when x1 increases by 1 unit and x2 stays the same
       y changes by 0.6944 when x2 increases by 1 unit and x1 stays the same
       y changes by 0.8028 when x1 increases by 1 unit and x2 stays the same
       y changes by 0.8028 when x2 increases by 1 unit and x1 stays the same
b. Estimate y when x1 = 180 and x2 = 310 (to 3 decimals).
_____

Answer 1