Statistics Solutions

(Steps Shown) An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that a 95 \%

Question: An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that a \(95 \%\) confidence interval estimate for the mean caffeine intake (measured in \(\mathrm{mg}\) ) is within \(15 \mathrm{mg}\) of the true mean? Assume that the standard deviation in caffeine intake is \(68 \mathrm{mg}\).

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