=+15. A scatterplot of Salary against Years Experience for some employees, and the scatterplot of residuals against predicted Salary from the regression line are shown in the figures. On the basis of these plots, would you recommend a re-expression of either Salary or Years Experience? Explain. Salary 0 10 20 30 40 Years Experience 20 30 40 50 60 Residuals 20 30 40 50 Predicted

–15

–10

–5 0

5 10 15