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Mathematics, 30.03.2020 23:41 junielouwho

You are contacted by a phone-in technical support business that is interested in some information about the amount of time their customers spend on hold. You find out that on average, each caller spends 11 minutes on hold with a standard deviation of 1.16 minutes. If you were to take a random sample of 62 callers, you would expect 79% of the time the average hold time would be greater than how many minutes?

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