Estimating the true mean age of truck drivers


A company is interested in estimating the true mean age of truck drivers. A statistician appointed by the company should find out the sample size required in order to make the determine accurate to within 0.6 of the true mean with 95% confidence and variance of 1.5. What is the minimum number of truck drivers needed in the sample size to achieve this result?

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Basic Statistics: Estimating the true mean age of truck drivers
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