A 99% Confidence Interval (In Inches) for the Mean

question 51

Multiple Choice

A 99% confidence interval (in inches) for the mean height of a population is $65.7 < \mu < 67.3$
This result is based on a sample of size 144 . Construct the 95% confidence interval. (Hint: you will first need to find the sample mean and sample standard deviation) .

• A) \(65.7 \text { in. } < \mu < 67.3 \text { in. }\)
• B) \(65.9 \text { in. } < \mu < 67.1 \text { in. }\)
• C) \(65.6 \text { in. } < \mu < 67.4 \text { in. }\)
• D) \(66.0 \text { in. } < \mu < 67.0 \text { in. }\)

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