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Confidence interval for the average number of customers

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Reference no: EM131319993

The manager of The Cheesecake Factory in Boston reports that on six randomly selected weekdays, the number of customers served was 120, 130, 100, 205, 185, and 220. She believes that the number of customers served on weekdays follows a normal distribution.

Construct the 90% confidence interval for the average number of customers served on weekdays.

Reference no: EM131319993

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