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Below are the times (in days) it takes for a sample of customers from Sarah's computer...

Below are the times (in days) it takes for a sample of customers from Sarah's computer store to pay their invoices. 18, 26, 32, 33, 15, 20 Find the standard deviation of this sample of times. Round your answer to two decimal places.

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Answer #1

Sample standard deviation

= stdev(18, 26, 32, 33, 15, 20) [Excel Formula]

= 7.51

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