The estimated regression equation for a model involving two independent variables and 10 observations follows. y = 33. 2497 + 0.5665x , + 0. 2611x 2 a. Interpret b1 and b2 in this estimated regression...

The estimated regression equation for a model involving two independent variables and 10 observations follows.

Extracted text: The estimated regression equation for a model involving two independent variables and 10 observations follows. y = 33. 2497 + 0.5665x , + 0. 2611x 2 a. Interpret b1 and b2 in this estimated regression equation. b1 Select b2 Select b. Predict y when x1 = 180 and x2 = 310 (to 3 decimals).