A steusocal 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 ? = 81 + 4x. Years of Annual Sales Salesperson Experience ($1,000s) 2 97 97 102 6 103 6 8 111 10 119 10 128 11 117 10 13 136 (8) Compute the residuals. Years of Annual Sales ($1,000s) Residuals Experience 80 97 97 102 103 111 10 119 10 128 11 117 13 136 onstruct a residual plot 101 167 16 121 4 Residuals Residuals Residual of Residual -4 -8 -4 -8 -12 .12- -12 16 0 2 16 6 8 10 12 14 16 4 6 8 10 12 14 4 6 8 10 12 14 2 4 6 8 10 12 14 O Years of Experience Years of Experience Years of Experience Years of Experience (b) Do the assumptions about the error te able in light of the residual plot? The plot suggests a g tions do not appear reasonable. The plot sugg The p asonable. The plot The plot suggests a tions appear reasonable