A statistical program is recommended A sales manager collected the following data on x = years of experience and y = annual sales ($1,000s). The estimated regression equation for these data is ? = 80 + 4x. Salesperson Years of Annual Sales Experience ($1,000s) 97 92 107 6 103 6 B 101 10 119 10 118 11 127 10 13 136 () Compute the residuals. Years of Annual Sales Experience ($1,000s) Residuals 80 97 92 107 103 B 101 10 119 10 118 11 127 13 136 Construct a residual plot. 161 124 16 12 PACON OADN Residual Residuals -4 Residuals -4 Residuals -84 -8 -12 12 - 8 -8 -16 -16 -12 -12 2 4 6 8 10 12 14 o 161 4 6 8 10 12 14 -164 O Years of Experience 4 6 8 10 12 14 2 Years of Experience 4 6 8 10 12 14 OO Years of Experience Years of Experience (b) Do the assumptions at e In light of the residual plot? O The plot suggest The plo s appear reasonable. The plot The plot his do not appear reasonable. O Th ptions do not appear reasonable. error term as