For Exercises 65–68, software output from a confidence interval for is provided. For each, examine the indicated software output, and do the following:

  1. Report the confidence interval in the form “(lower bound, upper bound).”
  2. Interpret the confidence interval.
  3. Find the margin of error for the confidence interval.
  4. Interpret the margin of error.

Question 8.66

66. Purchase Visits. In the Excel output, represents the population mean number of purchase visits made, per customer, over six months. The confidence level is 95%.

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