Section 6Â Â Single-Period Model 1) Which of the following items is mostly likely managed using a single-period order model? A) Christmas trees B) canned food at the grocery store C) automobiles at a dealership D) metal for a manufacturing process E) gas sold to a gas station A) inventory has limited value after a certain period of time. B) it has the largest EOQ sizes. C) the order quantity should usually equal the expected value of demand. D) supply is limited. E) the cost of a shortage cannot be determined accurately. 3) A local club is selling Christmas trees and deciding how many to stock for the month of December. If demand is normally distributed with a mean of 100 and standard deviation of 20, trees have no salvage value at the end of the month, trees cost $20, and trees sell for $50 what is the service level? A) .60 B) .20 C) .84 D) .40 E) unable to determine given the above information 4) Suppose that papers for a newspaper stand cost $0.40 and sell for $0.80. They currently have no salvage value. If the stand owner is able to find an outlet that would provide a salvage value of $0.10, what would be the increase in service level? A) .5 B) 0 C) .07 D) 1 E) unable to determine given only the above information 5) Service level is: A) the probability of stocking out. B) the probability of not stocking out. C) something that should be minimized in retail. D) calculated as the cost of a shortage divided by (the cost of shortage + the cost of overage) for single-period models. E) B and D 6) A bakery wants to determine how many trays of doughnuts it should prepare each day. Demand is normal with a mean of 5 trays and standard deviation of 1 tray. If the owner wants a service level of at least 95%, how many trays should he prepare (rounded to the nearest whole tray)? Assume doughnuts have no salvage value after the day is complete. A) 5 B) 4 C) 6 D) 7 E) unable to determine with the above information 7) Consider a local club selling Christmas trees. If trees cost $15 and sell for $60 with no salvage value, what is the ideal service level? If salvage value is increased to $5, what is the change in service level? 8) Consider a local club selling Christmas trees. If demand is normal with a mean of 200 and a standard deviation of 50, how many trees should the club stock if service level must be greater than 95%?