Please help me with my economics problem. I don't know how to answer it.

QUESTION 1 The table below is used in Questions 1 and 2, It contains three estimated regressions, which were computed in 2007 using data on employees, The data set used forthe 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 I 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 othenNise) 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 2 3 Graduated high school (X1) 0.352 0.373 (0.021) 0.371 (0.021) (0.021) Male (X2) 0.458 (0.021) 0.457 0.451 (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 (0.018) 12.390 (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 n 10973 10973 10973 Using the regression results in column (1): Is the coefficient on "Graduated high school", estimated from this regression, statistically significant at the 5% level? The calculated test statistic is (two decimal places) Therefore, is the null hypothesis rejected at the 5% level of significance? (Type Yes or No)QUESTION 2 Continue to use the regression results in column (1) from Question 1. 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