Select a correct multiple regression equation that can be used to analyze the data for a two-factorial design with two levels for factor A and three levels for factor B. Define all variables. I. E(y)= 0 + 1 x 1 + 2 x 2 + 3 x 3 where x 1 =1 if level 2 for factor A,x 1 =0, if level 1 for factor A; x 2 =1 if level 2 for factor B,x 2 =0, otherwise; x 3 =1 if level 3 for factor B,x 3 =0, otherwise. II. E(y)= 0 + 1 x 1 + 2 x 2 + 3 x 1 x 2 + 4 x 1 x 3 where x 1 =1 if level 2 for factor A,x 1 =0, if level 1 for factor A; x 2 =1 if level 2 for factor B,x 2 =0, otherwise; x 3 =1 if level 3 for factor B,x 3 =0, otherwise. II. E(y)= 0 + 1 x 1 + 2 x 2