QUESTION 4 The table below is used for Questions 4 and 5. It contains three estimated regressions, which were computed in 2007 using data on employees. The data set used for the regressions consisted of information on over 10,000 full-time, full-year workers. Employees were surveyed on their earnings and whether they had graduated high school or not. The data set also contains information on the region of the country where the person lived (North / East / South / West), and the individual's gender and age. For the purposes of this quiz: AHE = average hourly earnings Graduated high school (X1) = binary variable (1 if the employee graduated high school, 0 if they did not) Male (X2) = binary variable (1 if male, 0 if female) Age (X3) = age in years North (X4) = binary variable (1 if Region = North, 0 otherwise) South (X5) = binary variable (1 if Region = South, 0 otherwise) East (X6) = binary variable (1 if Region = East, 0 otherwise) Results of Regressions of Average Hourly Earnings on Gender and Education Binary Variables and Other Characteristics Using 2007 Data from the Current Population Survey Dependent variable: average hourly earnings (AHE). Regressor Graduated high school (X1) 0.352 0.373 0.371 (0.021) 0.021) (0.021) Male (X2) 0.458 0.457 0.451 (0.021) (0.020) (0.020) Age (X3) 0.011 0.011 (0.001) (0.001) North (X4) 0.175 (0.37 South (X5) 0.103 (0.033) East (X6) -0.102 (0.043) Intercept 12.84 12.471 12.390 (0.018) (0.049) (0.057) F-statistic for regional effects = 0 21.87 SER 1.026 1.023 1.020 R2 0.0710 0.0761 0.0814 10973 10973 10973QUESTION 5 Continue to use the regression results in column (1) from the table in Question 4. Construct a 95% confidence interval for the coefficient on "Graduated high school". Lower bound: Upper bound: Please report all answers in this question to four decimal places