Brewer Parry
03/12/2024 · Middle School

You want to obtain a sample to estimate a population mean age of the incoming fall term transfer students. Based on previous evidence, you believe the population standard deviation is approximately \( \sigma=6.1 \). You would like to be \( 99 \% \) confident that your estimate is within 2.5 of the true population mean. How large of a sample size is required? \( \mathrm{n}= \) Do not round between steps. Use technology to find \( z \)-score. Give your answer in whole people. Make sure you use the correct rounding rule for samples size.

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The required sample size is 40.

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