An Introduction to Management Science 13th Edition by David Anderson,Dennis Sweeney ,Thomas Williams ,Jeffrey Camm, Kipp Martin

تمرين 38

Floyd Distributors, Inc., provides a variety of auto parts to small local garages. Floyd purchases parts from manufacturers according to the EOQ model and then ships the parts from a regional warehouse direct to its customers. For a particular type of muffler, Floyd's EOQ analysis recommends orders with Q * = 25 to satisfy an annual demand of 200 mufflers. Floyd's has 250 working days per year, and the lead time averages 15 days.
a. What is the reorder point if Floyd assumes a constant demand rate?
b. Suppose that an analysis of Floyd's muffler demand shows that the lead-time demand follows a normal probability distribution with ? = 12 and ? = 2.5. If Floyd's management can tolerate one stockout per year, what is the revised reorder point?
c. What is the safety stock for part (b)? If C h = $5/unit/year, what is the extra cost due to the uncertainty of demand?