The following regression model is used to predict the average price of a refrigerator. The independent variables are one quantitative variable: X1 = size (cubic feet) and one binary variable: X2 = freezer configuration (1 freezer on the side, 0 = freezer on the bottom). y-hat = $499 + $29.4X1 - $121X2 (R^2 = .67. Std Error = 85). What is the average difference in price between a refrigerator that has a freezer on the side and a freezer on the bottom, assuming they have the same cubic feet?
A. Freezer on the side is $499 higher on average than freezer on the bottom
B. Freezer on the side is $121 higher on average than freezer on the bottom
C. Not enough information to answer
D. Freezer on the side is $121 lower on average than freezer on the bottom
E. Freezer on the side is $499 lower on average than freezer on the bottom