1) (a (b (c (d (e Consider the following table, where the unit of observation is an individual, and the dependent variable in each regression is annual income in dollars. Each column represents a separate regression. The standard errors of the coefficients are reported in parentheses. Woman is an indicator variable which equals 1 if an individual is a woman; and equals 0 otherwise. Dependent Variable: Income in Dollars Model 1 Model 2 Model 3 Years of Schooling 4362.88*** 4364.63*** 5243.88*** (1214.52) (1242.74) (1439.94) -2324.86%** (861.57) Woman X Years of Schooling Province Fixed Effects No Yes No Adjusted R-squared 0.256 0.253 0.297 Observations 106,222 106,222 106,222 * _ e e p