Practical Management Science
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Jim's Job Shop buys two parts (Tegdiws and Widgets) for use in its production system from two different suppliers. The parts are needed throughout the entire 52-week year. Tegdiws are used at a relatively constant rate and are ordered whenever the remaining quantity drops to the reorder level. Widgets are ordered from a supplier who stops by every three weeks. Data for both products are as follows:

a. What is the inventory control system for Tegdiws?

Reorder quantity = 1,225

Reorder point = 824.24

b. Find the total inventory costs if using inventory policy.

This is a case considering safety stock (Do not use Excel, show your work)

Holding cost per unit per year is given as a percentage of item cost

ITEM TEGDIW WIDGET
Annual Demand 10,000 5,000
Holding cost (% of item cost) 20% 20%
Set up or order cost $150.00 $25.00
Lead Time 4 weeks 1 week
Safety stock 55 units 5 units
Item cost $10.00 $2.00
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