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9) The mean SAT reading score was 495 with a standard deviation of 115 in 2014-2015. In a sample size of 1, 068, 000, calculate

9) The mean SAT reading score was 495 with a standard deviation of 115 in 2014-2015. In a sample size of 1, 068, 000, calculate the confidence interval at the 85% level. State the confidence interval. And write the statement indicating what it means.

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