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QNT 275-A random sample of 82 customers, who visited a department store

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January 13th, 2018

A random sample of 82 customers, who visited a department store, spent an average of $75 at this store. Suppose the standard deviation of expenditures at this store is $17 The 98% confidence interval for the population mean (rounded to two decimal places) is:The lower limit is:The upper limit is:

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