Using the above model, determine the regression equation for program C ( E(Y) =Po + 81 X1 ( E(Y) =[Bo + 82] + [B1 + B4 ]X1 ( E(Y)=[Bo + P3 ] + [B1 + $5 ] X1 E(Y) = [Bo + 3 ] + B1X1 OE(Y) =Po + 1X1 + 82X2 + B4 X1X2 + 85 X1X3If then the regression equations (one for each of the three programs) have the same slope (are parallel) when E(Y) is graphed against X1 O P4 = B5 =0 O P2 = P3 = P4 = P5 = 0 O P1=0 OP1 P2 = P3 0 OPI = P2 = Pa = P4 = B5 - 0A portion of the fitted regression equation is as follows y = 5+X, -X,+2X, +B,X,X2-2X,X, A graph of the three regression equations for the three programs A, B, and C is as follows: B X Which of the following is the only possible value for the unknown coefficient B, ? O 02 O 01 OAn insurance company is experimenting with three different training programs, A. B. and C. for its sales people. The following model is proposed where Y= Monthly sales (in thousands of dollars) X1 = Number of months of experience if Progam D 0. if not if Program C if not Program A is the base level