For Exercises 47–54, do the following for the indicated data:

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

Question 13.49

49. World Temperatures. Data from Exercise 41

13.1.49

(a) (b) (0.8064, 1.2868). TI-83/84: (0.8063, 1.2868) (c) We are 95% confident that the interval (0.8063, 1.2868) captures the population slope of the relationship between Low and High.