kase 10-4 Organization of the document: 1. Present a summary of the context of the case. In other words, explain what the case is about. 2. Run a regression with \"percentage of income invested in tax-deferred retirement plans\" as the dependent variable. Are all the independent variables significant? If not, eliminate those variables that are not statistically significant and run the regression again. 3. Provide an interpretation of the coefficients of the regression. You will get coefficients that are very small, so you may want to express the units of the independent variables in thousands of dollars rather than dollars. 4. What can you say about the fit of the regression to the data (R-square}? What about the Standard Error of the Estimate? 5. Compute a correlation matrix. Do you see any evidence of multicollinearity? 6. Answer the case questions: Using correlations, scatterplots, and regression analysis, what can you conclude about the tendency of this group of people to invest in tax-deferred Hovv successful is regression with these data? Make sure you provide an interpretation of your correlations and scatterplots. Think about other variables that may be relevant to explain the percentage invested in tax-deferred plans