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 4.111

13.

10 20 30 40
2 5 9 12

4.2.13

(a) (b) For each increase of 1 unit, the estimated value of increases by 0.34 unit. When the estimated value of is −1.5.