Question: 7.2 Using the regression results in column (1): a. Is the high school earnings difference estimated from this regression statistically significant at the 5% level?

7.2 Using the regression results in column (1):

a. Is the high school earnings difference estimated from this regression statistically significant at the 5% level? Construct a 95% confidence interval of the difference.

b. Is the male–female earnings difference estimated from this regression statistically significant at the 5% level? Construct a 95% confidence interval for the difference.

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