Question: Calculate the minimum sample size needed to construct a confidence interval with the desired characteristics. A researcher is looking to estimate the mean LSAT score

Calculate the minimum sample size needed to construct a confidence interval with the desired characteristics.

A researcher is looking to estimate the mean LSAT score of law school applicants who completed their undergraduate degrees at small liberal arts colleges. She wants a 99% level of confidence and maximum margin of error of 2 points. How many applicants must she survey if previous studies show the standard deviation to be approximately 9 points?

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