The data in Table 8 are the salaries, y , and years of experience, x , for a sample of 50 social workers. The first-order model E(y) = b0 + b1 x was fitted to the data using by SPSS. The SPSS printout is shown in Figure 37 , followed by a plot of the residuals versus yn in Figure 38 . Interpret the results. Make model modifications, if necessary.