Question 11 please.

Question 11 Needs Grading The 23.000-seat City Coliseum houses the local professional ice hockey, basketball, indoor soccer, and arena football teams, as well as various trade shows, wrestling and boxing matches, tractor pulls, and circuses. Coliseum vending annually sells large quantities of soft drinks and beer in plastic cups, with the name of the coliseum and the various team logos on them. The local container cup manufacturer that supplies the cups in boxes of 100 has offered coliseum management the following discount price schedule for cups: Order Quantity (in Price per Box boxes) 2.000-6,999 S47 7,000-11,999 12,000-19,999 20,000+ The annual demand for cups is 2.3 million, the annual carrying cost per box of cups is S1.90, and the ordering cost is $320. Determine the optimal order quantity and total annual inventory cost. Question 12 Needs Gre The metropolitan airport commission is considering the establishment of limitations on noise pollution around a local airport. At the present time, the noise level per jet takeoff in one neighborhood near the airport is approximately normally distributed with a mean of 100 decibels and a standard deviation of 3 decibels. a. What is the probability that a randomly selected jet will generate a noise level of more than 105 decibels? b. What is the probability that a randomly selected jet will generate a noise level of less than 93 decibels! What is the probability that a randomly selected jet will generate a noise level between 92 and 106 decibels