(Solved):   please help not understanding, for drop down options are y changes by .2802 when x1 ...

 

please help not understanding, for drop down options are

y changes by .2802 when x1 increases by 1 unit and x2 stays the same/  y changes by .2802 when x2 increases by 1 unit and x1 stays/ y changes by .5245 when x1 increases by 1 unit and x2 stays the same/y changes by .5245 when x2 increases by 1 unit and x1 stays the same

The estimated regression equation for a model involving two independent variables and 10 observations follows. \[ \hat{y}=29.5520+0.2802 x_{1}+0.5245 x_{2} \] a. Interpret \( b_{1} \) and \( b_{2} \) in this estimated regression equation (to 4 decimals). \[ b_{1}= \] y changes by \( 0.5245 \) when \( x 2 \) increases by 1 unit and \( x 1 \) stays the same \( \checkmark \) [ \( y \) changes by \( 0.5245 \) when \( x 1 \) increases by 1 unit and \( x 2 \) stays the same \( \checkmark \) b. Estimate \( y \) when \( x_{1}=180 \) and \( x_{2}=310 \) (to 3 decimals).