2. Supplier ontime delivery performance is critical to enabling the buyers or ganisation to meet its customer service commitments. Therefore} monitoring supplier delivery times is also critical. Based on a great deal of historical data, a manufacturer of personal computers nds for one of its justintime suppli ers that the delivery times are random and well approximated by the Normal distribution with mean 45.8 minutes and standard deviation 8.9 minutes. (a) What is the probability that a particular delivery will exceed 50 minutes? Write answer as a decimal number to four decimal places. (b) What is the probability that the mean time of ten deliveries will exceed 5!) minutes? Write answer as a decimal number to four decimal places. Show your work. including properly labelled distributions. 2