Question: 7.12 Air Alberta has been using an (s, Q) control system for a fast-moving spare part for one of its types of aircraft. The properties
7.12 Air Alberta has been using an (s, Q) control system for a fast-moving spare part for one of
its types of aircraft. The properties of this part are
D = 1,920 units/year A = $15
v = $20.00/unit r = 0.2$/$/year
xL = 150 units L = 60 units
Whenever a shortage is impending, an expediting action is taken, avoiding the shortage. The
cost of such an expedite is roughly $200, independent of the magnitude of the impending
shortage. The company uses an EOQ as the order quantity.
a. Determine the EOQ and s.
b. What are the expected total relevant costs (replenishing, carrying, and expediting) per
year?
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