MyLab Operations Management with Pearson eText -- Access Card -- for Operations Management: Processes and Supply Chains
11th Edition
ISBN: 9780133885583
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Question
Chapter 3, Problem 27P
(a)
Summary Introduction
Interpretation: It is to be determined that the call center access time is in statistical control.
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.
(b)
Summary Introduction
Interpretation: The capability of the process is to be determined when three-sigma performance is desired.
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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What the different between a near miss and hazard
1. movement and contact
2. Contact
3. movement
The fixed and variable costs for three potential manufacturing plant sites for a rattan chair weaver are shown:
Site
Fixed Cost Per Year
Variable Cost per Unit
1
$700
$12.00
2
$1,000
$7.00
$2,200
$5.00
a) After rounding to the nearest whole number, site 1 is best below
After rounding to the nearest whole number, site 2 is best between
After rounding to the nearest whole number, site 3 is best above
b) If the demand is 590 units, then the best location for the potent
3
units.
and
units.
600
0
60
units.
g plant is
Refer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem.
Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results:
Hour
R
Hour
X
R
Hour
X
R
Hour
X
R
1
3.25"
0.71"
7
3.15" 0.58"
13
3.11" 0.85"
19
4.51"
1.56"
2
3.20
1.18
8
2.65 1.08
14
2.83 1.31
20
2.79
1.14
3
3.12
1.38
9
15
4.
3.39
1.31
10
5
2.97
1.17
6
2.76
0.32
3.02 0.71
3.12 1.01
2.75 1.33 16 2.74 0.50 22
11 2.73 1.17 17 2.76 1.43 23
12 2.87 0.45 18 2.64 1.24
21
2.75
1.03
3.18
0.46
2.94
1.53
24
2.54
0.97
Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places before proceeding with further calculations):
Upper Control Limit (UCL) =
inches (round your response to three decimal places).
Lower Control Limit (LCL) =
inches (round your response to three decimal places).
Based on the x-chart, the wire cutting process has been
The control limits…
Chapter 3 Solutions
MyLab Operations Management with Pearson eText -- Access Card -- for Operations Management: Processes and Supply Chains
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. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 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. 2VCCh. 3 - Prob. 3VC
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