Earnings and genderThe data in the table show the 2007 average earnings of year-round full-time…

Earnings and genderThe data in the table show the 2007 average earnings of year-round full-time workers by gender for several different levels of educational attainment.Average Annual EarningsMalesFemales,659$17,023$26,27719,16235,72526,02941,87530,81644,40433,48157,22041,68171,53051,31682,40168,875(a) 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.(b) Find and interpret the slope of the linear regression line.(c) 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)?

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