Confidence Interval for Sample Mean Quiz
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Questions and Answers

If the sample mean is 9 hours, what is the 95% confidence interval?

  • 7.80 to 10.20 hours
  • 7.04 to 11.96 hours (correct)
  • 8.74 to 9.26 hours
  • 7.36 to 10.64 hours

    • What is the 95% confidence interval for a sample mean of 9 hours?

  • 8.74 to 9.26 hours
  • 8.36 to 10.64 hours
  • 7.04 to 11.96 hours (correct)
  • 6.80 to 10.20 hours

    • For a sample mean of 9 hours, which of the following represents the 95% confidence interval?

  • 8.36 to 10.64 hours
  • 8.74 to 9.26 hours
  • 7.04 to 11.96 hours (correct)
  • 7.80 to 10.20 hours

    • If the mean of a sample is 9 hours, what would be the 95% confidence interval?

    <p>7.04 to 11.96 hours</p> Signup and view all the answers

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