The estimated regression equation for a model involving two independent variables and 10 observations follows. P = 24.1570 + 0.5701)!1 + 0.4970x2 (a) Interpret b1 in this estimated regression equation. ' bl = 0.5701 is an estimate of the change in y corresponding to a 1 unit change in x2 when x1 is held constant. ' bi = 0.4970 is an estimate of the change in y corresponding to a 1 unit change in X1 when X2 is held constant. bl = 0.4970 is an estimate of the change in y corresponding to a 1 unit change in )(2 when x1 is held constant. ' (I1 = 24.1570 is an estimate of the change in y corresponding to a 1 unit change in x1 when x2 is held constant. ' D1 = 0.5701 is an estimate of the change in y corresponding to a 1 unit change in x1 when x2 is held constant. Interpret oz in this estimated regression equation. ' b2 = 0.4970 is an estimate of the change in y corresponding to a 1 unit change in x1 when x2 is held constant. ' (:2 = 24.1570 is an estimate of the change in y corresponding to a 1 unit change in x1 when x2 is held constant. ' b2 = 0.5701 is an estimate of the change in y corresponding to a 1 unit change in x2 when x1 is held constant. (:2 = 0.4970 is an estimate of the change in 3/ corresponding to a 1 unit change in X2 when x1 is held constant. ' b2 = 0.5701 is an estimate of the change in y corresponding to a 1 unit change in x1 when x2 is held constant. (b) Predict y when x1 = 170 and x2 = 310