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Estimate of the mean sat scores

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Reference no: EM132198075

Random sample of 900 SAT scores has a sample mean of 1100. Assume that SAT scores have a population standard deviation of 300.

(a) Construct a 95% confidence interval estimate of the mean SAT scores. Show all work. Just the answer, without supporting work, will receive no credit. Include description of how confidence interval was constructed.

(b) Describe the confidence interval in everyday language.

Reference no: EM132198075

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