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Answer to Question #8497 in Discrete Mathematics for Bonnie Willey

Question #8497
Situation:A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is obtained. The average score for public high school student is 1000 (σ= 200).
Question: Determine the 95 % confidence interval for the population mean, based on the sample mean.
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