(a) Use the data from Exercise 2 to find the line of best fit for men s income as a function of women s income.
(b) What is the slope of this line?
(c) Does it predict that the earnings gap is widening or shrinking?
Exercise 2
Table 6 shows the median incomes, in dollars, of men and women in the United States for the years 1974 through 1980.
(a) Find the line of best fit for women s incomes versus time and
(b) the line of best fit for men s income versus time.
(c) Plot both lines on the same set of axes.
(d) Is the gap widening or shrinking?
(e) What would this data predict about the earnings gap in 1986? (The actual gap in 1986 was 25,256 - 16,232 = 9024)
