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Estimate of the average time needed to clean up

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On six occasions, in a random sample, it took 21, 26, 24, 22, 23 and 22 minutes to clean a university cafeteria. What can we say about the maximum error with 95% confidence when we use the average of these values as an estimate of the average time needed to clean up the cafeteria

Reference no: EM132851698

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