Consider the model y = Pp + By*, + B2Xz + Pag + E, where x, is a quantitative variable and x2 and x? are dummy variables describing a qualitative variable at three levels using the coding scheme xy = 1 if level 2 and xy = 1 if level 3 Q otherwise 0 otherwise The resulting least squares prediction equation is y = 47.5 + 2.5x, + 8.5x, + 16.8%3 - Complete parts a and b. a. What is the response line (equation) for E(y) when x2 =X3 = 0? When X2 = 1 and X3 = 0? When x2 = 0 and X3 = 1? Choose the correct equation for x2 = X3 = 0. OA E(y) = (Bo + P2) + Byxy O B. E(y) = Po + Byx1 O C. E() = (Bo + B3 ) + Byx 1 O D. E(y) = (Bo + $2 + $3) + B1x 1 Choose the correct equation for X2 = 1 and X3 = 0. O A. E(y) = (Bo + 12 + B3) + B1x1 O B. E(y) = Bo + B1x1 O C. E(y) = (Bo + 12) + By x 1 O D. E(y) = (Bo + B3) + B1x 1 Choose the correct equation for X2 = 0 and x3 = 1. O A. E(y) = (Bo + B2) + B1x1 O B. E(y) = (Bo + B3) + B1x1 O C. E(y) = Bo + B1x 1 OD. E(y) = (Bo + $2 + B3) + B1x1 Your screen sharing is paused Stop Share b. What are the least squares prediction equations associated with level 1, level 2, and level 3? Time Remaining