How does age and education affect income among middle-class households? To answer the question, conduct a regression analysis of the dependent variable INCOME using the independent variables AGE and...

How does age and education affect income among middle-class households? To answer the question, conduct a regression analysis of the dependent variable INCOME using the independent variables AGE and years of education (EDUC). a. Estimate the regression coefficients. b. Test the model’s validity. c. Test to determine whether there is evidence of a positive linear relationship between income and education. d. What does the coefficient of determination tell you?