A 95% Confidence Interval Estimate for a Population Mean μ

question 63

Multiple Choice

A 95% confidence interval estimate for a population mean μ is determined to be 65.48 to 76.52.Which of the following is true if a 90% confidence interval for μ is constructed?

• A)It is wider than the 95% confidence interval.
• B)It is the same as the 95% confidence interval.
• C)It is narrower than the 95% confidence interval.
• D)There is not enough information to determine the answer.

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