13th Edition
Publisher: CENGAGE L
ISBN: 9781305881884


13th Edition
Publisher: CENGAGE L
ISBN: 9781305881884


Chapter 8.1, Problem 2E
Textbook Problem

A simple random sample of 50 items from a population with σ = 6 resulted in a sample mean of 32.

  1. a. Provide a 90% confidence interval for the population mean.
  2. b. Provide a 95% confidence interval for the population mean.
  3. c. Provide a 99% confidence interval for the population mean.

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Chapter 8 Solutions

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