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SAT scores are distributed with a mean of 1,500 and a standard deviation of 303. You...

SAT scores are distributed with a mean of 1,500 and a standard deviation of 303. You are interested in estimating the average SAT score of first year students at your college. If you would like to limit the margin of error of your confidence interval to 40 points with 90 percent confidence, how many students should you sample? (Round up to a whole number of students.)

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