OPERATIONS MANAGEMENT CUSTOM ACCESS
11th Edition
ISBN: 9780135622438
Author: KRAJEWSKI
Publisher: PEARSON EDUCATION (COLLEGE)
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Question
Chapter 3, Problem 26P
Summary Introduction
Interpretation: The capacity of the process of producing the part at three-sigma level is to be determined.
Concept Introduction:
The X-chart is used to determine the central tendency of the process. By using the X-chart it easy to determine the abnormalities of the process along with the errors which are responsible for these errors.
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The Farley Manufacturing Company prides itself on the quality of its products. The company is engaged in competition for a very important project. A key element is a part that ultimately goes into precision testing equipment. The specifications are
8.000±3.000
millimeters. Management is concerned about the capability of the process to produce that part. The accompanying data were randomly collected during test runs of the process.
The process capability index,
Cpk,
is equal to
---------
(Enter your response rounded to three decimal places.)
Data Table
Observation (millimeters)
Sample
1
2
3
4
5
6
7
8
1
7.800
8.500
9.700
8.300
8.300
8.500
7.800
8.700
2
7.300
6.800
7.000
7.000
8.500
8.100
9.600
9.400
3
8.500
7.100
7.600
8.300
7.800
9.200
6.800
7.100…
The Farley Manufacturing Company prides itself on the quality of its products. The company is engaged in competition for a very important project. A key element is a part that ultimately goes into precision testing equipment. The specifications are
8.000plus or minus±3.0003.000
millimeters. Management is concerned about the capability of the process to produce that part. The accompanying data were randomly collected during test runs of the process.
Observation (millimeters) Sample 1 2 3 4 5 6 7 81 9.600 7.200 9.300 8.100 9.800 8.700 8.600 9.3002 8.500 9.000 9.100 8.000 7.600 8.400 7.800 9.8003 7.500 8.500 8.600 7.900 7.700 9.000 7.100 7.4004 7.100 8.100 9.700 9.300 8.200 8.800 7.700 9.0005 9.500 9.100 9.300 7.000 8.300 7.300 7.400 9.800
a. The process capability index, Cpk, is equal to_______.
(Enter your response rounded to three decimal places.
The Farley Manufacturing Company prides itself on the quality of its products. The company is engaged in competition for a very important project. A key element is a part that ultimately goes into precision testing equipment. The specifications are 8.000 ± 3.000 millimeters. Management is concerned about the capability of the process to produce that part. The following data (shown below) were randomly collected during test runs of the process:
Observation (Millimeters)
Sample
1
2
3
4
5
6
7
8
1
9.100
8.900
8.800
9.200
8.100
6.900
9.300
9.100
2
7.600
8.000
9.000
10.100
7.900
9.000
8.000
8.800
3
8.200
9.100
8.200
8.700
9.000
7.000
8.800
10.800
4
8.200
8.300
7.900
7.500
8.900
7.800
10.100
7.700
5
10.000
8.100
8.900
9.000
9.300
9.000
8.700
10.000
Assume that the process is in statistical control. Is the process capable of producing the part at the three-sigma level? Explain.
Chapter 3 Solutions
OPERATIONS MANAGEMENT CUSTOM ACCESS
Ch. 3 - Should a very pricey handcrafted object of beauty...Ch. 3 - Prob. 2DQCh. 3 - Prob. 3DQCh. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7P
Ch. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 31PCh. 3 - Prob. 1AMECh. 3 - Prob. 2AMECh. 3 - Prob. 3AMECh. 3 - Prob. 4AMECh. 3 - Prob. 5AMECh. 3 - Prob. 1VCCh. 3 - Prob. 2VC
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