Suppose a Motorboat dealership is dealing in costly motorboats that follow the policy of carrying a few units in stock and ordering for replenishment as soon as a motorboat is sold from the stock. The unit cost of the motorboat is $60,000 and the holding or carrying cost is $5,000 per unit per year. The management of the Motorboat dealership believes that the shortage cost due to waiting for the motorboat is $2,000 per unit short per month. The demand is seen to be Poison distributed with an average rate of 2 units per month and the replenishment lead time can be considered to be exponential with a mean of one month Considering the system as an M/M/s queuing system, find the optimal stock to be carried which can minimize the sum total of carrying and shortage costs.

Suppose a Motorboat dealership is dealing in costly motorboats that follow the policy of carrying a few units in stock and ordering for replenishment as soon as a motorboat is sold from the stock. The unit cost of the motorboat is $60,000 and the holding or carrying cost is $5,000 per unit per year. The management of the Motorboat dealership believes that the shortage cost due to waiting for the motorboat is $2,000 per unit short per month. The demand is seen to be Poison distributed with an average rate of 2 units per month and the replenishment lead time can be considered to be exponential with a mean of one month Considering the system as an M/M/s queuing system, find the optimal stock to be carried which can minimize the sum total of carrying and shortage costs.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter11: Simulation Models

Section: Chapter Questions

Problem 47P

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Suppose the Motorboat dealership in part (a) above dealing in costly motorboats follows the policy of carrying a few units in stock and ordering for replenishment as soon as a motorboat is sold from the stock. The unit cost of the motorboat is $60,000 and the holding or carrying cost is $5,000 per unit per year. The management of Motorboat dealership believe that the shortage cost due to waiting for the motorboat is $2,000 per unit short per month. The demand is seen to be Poisson distributed with an average rate of 2 units per month and the replenishment lead time can be considered to be exponential with a mean of one month. Considering the system as an M/M/s queuing system, find the optimal stock to be carried which can minimize the sum total of carrying and shortage costs.
Suppose we schedule shipments to our customers so that we expect each shipment to wait for two days in finished goods inventory (in essence we add two days to when we expect to be able to ship). We do this as protection against system variability to ensure a high on-time delivery service. If we ship approximately 2,000 units each day, how many units do we expect to have in finished goods inventory due to allowing this extra time? If the items are valued at $4.50 each, what is the expected value of this inventory?
Suppose we schedule shipments to our customers so that we expect each shipment to wait for two days in finished goods inventory (in essence we add two days to when we expect to be able to ship). We do this as protection against system variability to ensure a high on-time delivery service. If we ship approximately 2,000 units each day, how many units do we expect to have in finished goods inventory after allowing this extra time? If the items are valued at $4.50 each, what is the expected value of this inventory?
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