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Population mean number of items returned

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Reference no: EM131435634

Retail stores experience their heaviest returns on December 26 and December 27 each year. Most are gifts that, for some reason, did not please the recipient. The number of items returned, by a sample of 30 persons at a large discount department store, are observed and the summary statistics below are obtained.

Determine a 98% confidence interval for the population mean number of items returned.

Reference no: EM131435634

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