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Following safety protocols. Starburst serves its customers with a mean time of 7.5 minutes which includes the disinfecting of seats and order preparation with a

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Following safety protocols. Starburst serves its customers with a mean time of 7.5 minutes which includes the disinfecting of seats and order preparation with a standard deviation of 3.7 minutes. If a random sample of 32 customers is observed. find the probability that their mean serving time is at most 6 minutes

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