For Exercises 11–16, do the following for the designated data:

  1. Provide the point estimate of .
  2. Calculate the margin of error for the confidence level indicated.
  3. Construct and interpret a confidence interval for with the confidence level indicated.

Question 10.64

13. Data in Exercise 5, confidence level = 99%

10.2.13

(a) (b) . We can estimate the difference in the population means of Population 1 and Population 2 to within 5.326 with 99% confidence. (c) (−15.326, −4.674). We are 99% confident that the difference in the population means of Population 1 and Population 2 lies between 215.326 and 24.674.