question 2, 2a and 2b

Interstate buses are required to go through a safety inspection center. Buses arrive at the center at the average rate of 60 an hour and the average service rate is 20 buses per hour per inspector. Currently there are four inspectors on duty How many minutes, on average, would a bus that is not immediately checked have to wait? O 1.528 minutes (approximately 0.0254 hour) 6 minutes (0.10 hour) 3 minutes (0.05 hour) 4.528 minutes (approximatelyo.0754 hour) Which one of the following is not generally a determinant of the reorder point? length of lead time rate of demand stock out risk lead time variability purchase cost A bakery's use of corn sweetener is normally distributed with a mean of 80 gallons per day and a standard deviation of 4 gallons per day. Lead time for delivery of the corn sweetener is 6 days. If the bakery is using ROP system and is reordering the corn sweetener when the amount on-hand reaches 500 gallons (i.e., ROP), calculate the risk of a stock out during the lead time. approximately 0.9793 (or 97.93%) approximately 0.05 (or 5%) approximately 0.16 (or 16%) O approximately 0.0207 (or 2.07%)