Supplier on-time delivery performance is critical to enabling the buyer's organization to meet its customer service commitments. Therefore, monitoring supplier delivery times is critical. Based on a great deal of historical data, a manufacturer of personal computers finds for one of its just-in-time suppliers that the delivery times are well approximated by the normal distribution with mean 45.8 minutes and standard deviation 13.8 minutes. A random sample of 5 deliveries is selected. a) What is the probability that a particular delivery will arrive in less than one hour? Round your answer to four decimal places. bị What is the probability that the mean time of 5 deliveries will exceed one hour? Round your answer to four decimal places. O Between what two values do the middle 60% of the sample mean delivery times fall? and Round your answers to two decimal places. d What is the probability that, in a random sample of 5 deliveries, more than three will amve in less than an hour? Round your answer to foue decimal places

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