A $99 \%$ Confidence Interval (In Inches) for the Mean Height of a Height

question 28

Multiple Choice

A $99 \%$ confidence interval (in inches) for the mean height of a population is $65.33 < \mu < 66.87$ . This result is based on a sample of size 144 . If the confidence interval $65.54 < \mu < 66.66$ is obtained from the same sample data, what is the degree of confidence? (Hint: you will first need to find the sample mean and sample standard deviation) .

• A) 93%
• B) 92%
• C) 95%
• D) 94%

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