Production and Operations Analysis, Seventh Edition
Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 4.7, Problem 22P

a.

Summary Introduction

Interpretation:The sources that should be used and the size of the standing orders are to be calculated.

Concept introduction: Standing orders areexercised to enablenormallyperiodic charges to the similar vendor over a definite period.

b

Summary Introduction

Interpretation: The optimal value of the holding and set up costs for wafers are to be computed.

Concept introduction: Holding costs are those related with storage inventory that remains unsold.These prices are 1 component of total stock costs, along with ordering & shortage costs where as set up charges is the cost acquired to get equipment to get equipment to procedure a diverse batch of goods.

c

Summary Introduction

Interpretation:The re-order point based on the on-hand level of inventory of wafers is to be calculated.

Concept introduction: Re-order point is the level of stock which generates an act to refill that inventory stock. It is a least amount of an article which anestablishmentgrasps in inventory, such that, when inventorydrop to this sum, the article must be ordered.

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A purchasing agent for a particular type of silicon wafer used in the production ofsemiconductors must decide among three sources. Source A will sell the siliconwafers for $2.50 per wafer, independently of the number of wafers ordered. Source Bwill sell the wafers for $2.40 each but will not consider an order for fewer than3,000 wafers, and Source C will sell the wafers for $2.30 each but will not acceptan order for fewer than 4,000 wafers. Assume an order setup cost of $100 and anannual requirement of 20,000 wafers. Assume a 20 percent annual interest rate forholding cost calculations.a. Which source should be used, and what is the size of the standing order?
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