OPERATIONS AND SUPPLY CHAIN MANAGEMENT
9th Edition
ISBN: 9781119448037
Author: Russell
Publisher: WILEY
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Chapter 2, Problem 4.1CP
Summary Introduction
Case summary:
The continental luggage company manufactures the best selling Trotter and various other types of luggage. The process of producing Trotter includes five stages of assembly. The company decides to implement the process control procedure that includes inspecting the working in each stage of assembly.
To explain: The impact of quality improvement program on the product yield of the company.
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Plastomer, Inc., specializes in the manufacture of high-grade plastic film used to wrap food products. Film is rejected and scrapped for a variety of reasons (e.g., opacity, high carbon content, incorrect thickness or gauge, scratches, etc.). During the past month, management collected data on the types of rejects and the amount of scrap generated by each type. The following table presents the results:
Type of Failure
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50019,6501503,81027,6004503,84050010,650
Draw a Pareto chart to identify which type of failure management should attempt to eliminate first.
Abernathy, Inc., produces two different generators and is concerned about their quality. The company has identified the following quality activities and costs associated with the two products:
Generator A
Generator B
Units produced
170,000
340,000
Warranty work (units)
1,700
850
Scrapped units (number)
3,400
850
Inspection (hours)
3,400
1,700
Quality training (hours)
85
85
Activities:
Performing warranty work
$816,000
Scrapping units
612,000
Inspecting
306,000
Quality training
85,000
Required:
1. Calculate the quality cost per unit for each product, and break this unit cost into quality cost categories. If required, round your answers to the nearest cent.
Generator A
Generator B
Unit cost
$fill in the blank 1
$fill in the blank 2
Flextronchip, an OEM manufacturer, has a fifth-generation chip for cell phones, with chip specification of 0.2 ± 0.0002 mm for the distance between two adjacent pins. The loss due to a defective chip has been estimated as $28.
Required:
1. Compute the value of k, the cost coefficient in the Taguchi quality loss function (QLF), L(x) = k(x − T)2.
2. Assume that the quality control manager takes a sample of 100 chips from the production process. The results are as follows:
Measurement
Frequency
0.1996
2
0.1997
6
0.1998
14
0.1999
9
0.2000
45
0.2001
9
0.2002
8
0.2003
5
0.2004
2
a. & b. Use the appropriate Taguchi quality loss function, L(x), to calculate the estimated quality loss for each of the observed measurements. Additionally, calculate the expected (i.e., average) loss per unit for the production process as a whole.
Chapter 2 Solutions
OPERATIONS AND SUPPLY CHAIN MANAGEMENT
Ch. 2 - Prob. 2.1ASCCh. 2 - Prob. 3.1ASCCh. 2 - Prob. 4.1ASCCh. 2 - Prob. 5.1ASCCh. 2 - Prob. 6.1ASCCh. 2 - Prob. 7.1ASCCh. 2 - Prob. 8.1ASCCh. 2 - Prob. 9.1ASCCh. 2 - Prob. 10.1ASCCh. 2 - Prob. 11.1ASC
Ch. 2 - Prob. 13.1ASCCh. 2 - Prob. 1QCh. 2 - Prob. 2QCh. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - Prob. 8QCh. 2 - Prob. 9QCh. 2 - Prob. 10QCh. 2 - Prob. 12QCh. 2 - Prob. 13QCh. 2 - Prob. 14QCh. 2 - Prob. 15QCh. 2 - Prob. 17QCh. 2 - Prob. 21QCh. 2 - Prob. 22QCh. 2 - Prob. 23QCh. 2 - Prob. 24QCh. 2 - Prob. 25QCh. 2 - Prob. 26QCh. 2 - Prob. 27QCh. 2 - Prob. 28QCh. 2 - Prob. 29QCh. 2 - Prob. 30QCh. 2 - Most students live in a dormitory or apartment...Ch. 2 - Prob. 32QCh. 2 - Describe, in general, how the J.D. Power Circle...Ch. 2 - Select a product that you own (like a cell phone,...Ch. 2 - Prob. 35QCh. 2 - Prob. 36QCh. 2 - Prob. 37QCh. 2 - Prob. 38QCh. 2 - Prob. 39QCh. 2 - Prob. 40QCh. 2 - Prob. 41QCh. 2 - Prob. 42QCh. 2 - Prob. 43QCh. 2 - Prob. 44QCh. 2 - Prob. 45QCh. 2 - Prob. 47QCh. 2 - Prob. 48QCh. 2 - Prob. 49QCh. 2 - Prob. 50QCh. 2 - Prob. 51QCh. 2 - Prob. 55QCh. 2 - Prob. 56QCh. 2 - Prob. 57QCh. 2 - Prob. 60QCh. 2 - Prob. 61QCh. 2 - Prob. 67QCh. 2 - Prob. 68QCh. 2 - Prob. 1PCh. 2 - The Backwoods American company in Problem 2-1...Ch. 2 - Prob. 3PCh. 2 - In Problem 2-3, if the direct manufacturing cost...Ch. 2 - Prob. 5PCh. 2 - The Colonial House Furniture Company manufactures...Ch. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 14PCh. 2 - Prob. 1.1CPCh. 2 - Prob. 2.1CPCh. 2 - Prob. 3.1CPCh. 2 - Prob. 3.3CPCh. 2 - Prob. 3.4CPCh. 2 - Prob. 3.5CPCh. 2 - Prob. 3.6CPCh. 2 - Prob. 3.7CPCh. 2 - Prob. 3.8CPCh. 2 - Prob. 4.1CP
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