Refer to Exercise 16.9. a. Determine the residuals and the standardized residuals. b. Draw the histogram of

Question:

Refer to Exercise 16.9.
a. Determine the residuals and the standardized residuals.
b. Draw the histogram of the residuals. Does it appear that the errors are normally distributed? Explain.
c. Identify possible outliers.
d. Plot the residuals versus the predicted values of y. Does it appear that heteroscedasticity is a problem? Explain.