With reference to Exercise 11.40, in order to plot residuals, before clicking \(\mathbf{O K}\), you must select

The additional steps, before clicking the second \(\mathbf{O K}\).

will produce a plot of the residuals versus \(\widehat{y}\). See Exercise 5.102, page 184, to obtain a normal-scores plot of the residuals.
Use a computer to analyze the residuals from the multiple-regression analysis in Example 13.

Data From Exercise 11.40

Data From Example 13

Fit a multiple regression of assessment time to difficulty and experience. 

Data From Exercise 5.102

Dialog box: Click Storage. Check Residuals and Fits. Click OK twice.