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 10.62

11. Data in Exercise 3, confidence level = 90%

10.2.11

(a) (b) . We can estimate the difference in the population means of Population 1 and Population 2 to within 0.797 with 90% confidence. (c) (1.203, 2.797). We are 90% confident that the difference in the population means of Population 1 and Population 2 lies between 1.203 and 2.797.