Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
12th Edition
ISBN: 9780134855424
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Question
Chapter 3, Problem 15P
(a)
Summary Introduction
Interpretation: The p-chart is to be constructed.
Concept Introduction:
The monitoring of the nonconforming units in sample in statistical quality control is done by the representation of the p-chart.
(b)
Summary Introduction
Interpretation: The waiting time of the patients is to be concluded.
Concept Introduction:
The monitoring of the nonconforming units in sample in statistical quality control is done by the representation of the p-chart.
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The overall average on a process you are attempting to monitor is
60.0
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1.72.
Sample size is given to be
4.
Part 2
a) Determine the 3-sigma
x-chart
control limits.
Upper Control Limit
(UCLx)=enter your response here
units (round your response to two decimal places).
Part 3
Lower Control Limit
(LCLx)=enter your response here
units (round your response to two decimal places).
Part 4
b) Now determine the 2-sigma
x-chart
control limits.
Upper Control Limit
(UCLx)=enter your response here
units (round your response to two decimal places).
Part 5
Lower Control Limit
(LCLx)=enter your response here
units (round your response to two decimal places).
Part 6
How do the control limits change?
A.
The control limits are tighter for the 3-sigma
x-chart
than for the 2-sigma
x-chart.
B.
The control limits for the
2-sigma
x-chart
and for the 3-sigma
x-chart
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The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.
Day
1
2
3
4
5
6
7
8
9
10
Defectives
7
9
9
11
7
8
0
11
13
2
The upper and lower
3-sigma
control chart limits are:
UCLp = (enter your response as a number between 0 and 1, rounded to three decimal places).
LCLp = (enter your response as a number between 0 and 1, rounded to three decimal places).
The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.
LCLp
Day
Defectives
=
1
5
2
7
3
7
4
9
5
5
6
6
a) The upper and lower 3-sigma control chart limits are:
UCL = 0.127 (enter your response as a number between 0 and 1, rounded to three decimal places).
(enter your response as a number between 0 and 1, rounded to three decimal places).
7
1
8
6
9
10
10
1
Chapter 3 Solutions
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
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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