Try logs. Refer to the previous two exercises. Figure 2.31 is a scatterplot with the least-squares regression line for log salary versus year. For this model, r 2 = 0.9995. DATADATA

(a) Compare this plot with Figure 2.29. Write a short summary of the similarities and the differences.

(b) Figure 2.32 is a plot of the residuals for the model using year to predict log salary. Compare this plot with Figure 2.30 and summarize your findings.