Earnings and gender The data in the table show the average earnings of year-round full-time workers by gender for several different levels of educational attainment.
Use linear regression to find the linear equation that is the best for these data, with x representing the earnings for males and y representing the earnings for females.
Find and interpret the slope of the linear regression line.
If you made a similar linear model with data from 1965, how do you think its slope would compare with the slope found in part (b)? Explain.
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