Consider the teengamb.data data set. Fit the model with gamble as the response and the other variables as predictors.

1. Test the jacknife residuals for outliers.
2. Test for high leverage points.
3. Check the various deletion-type statistics (dfbetas, diffits) and list any potential problems
4. Compute an added variable plot for each of income and verbal.
5. Compute partial plus residual plots for each of income and verbal.