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Interval estimate of the population proportion

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An American Express retail survey found that 16% of U.S. consumers used the Internet to buy gifts during the holiday season (USA Today, January 18, 2000). If 1285 customers participated in the survey, what is the margin of error and what is the interval estimate of the population proportion of customers using the Internet to buy gifts? Use 95% confidence

Reference no: EM131106808

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