For Exercises 13–24, do the following:

  1. Calculate the slope and the intercept of the regression line. Write the regression equation.
  2. Interpret the values for and .

Question 4.117

19.

−70 −60 −50 −40 −30 −20 −10 0
5 10 15 20 20 15 10 5

4.2.19

(a) (b) For each increase of 1 unit, the estimated value of remains 12.5. When the estimated value of is 12.5.