For Exercises 23–30, follow these steps. Assume that the regression model assumptions are valid.

  1. Find for a 95% confidence interval for .
  2. Find the margin of error .
  3. Construct a 95% confidence interval for .

Question 13.23

23. Data in Exercise 7

13.1.23

(a) (b) (c) (0.909, 4.091)