Answer these questions: a. Construct a c-chart to monitor this process. b. Plot the c-chart graph. c. indicate if the process was out of control at any time
Answer these questions: a. Construct a c-chart to monitor this process. b. Plot the c-chart graph. c. indicate if the process was out of control at any time
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
Related questions
Question
![DIMU 2105 assignmen
QUESTION 2
One of the stages in the process of making denim cloth at the Southern Mills Company is to
spin cotton yarn onto spindles for subsequent use in the weaving process. Occasionally the yarn
breaks during the spinning process, and an operator ties it back together. Some number of
breaks is considered normal; however, too many breaks may mean that the yarn is of poor
quality. In order to monitor this process, the quality-control manager randomly selects a
spinning machine each hour and checks the number of breaks during a 15-minute period.
Following is a summary of the observations for the past 20 hours:
Sample
1
2
3
4
5
6
7
8
9
10
Number of
Breaks
3
2
4
1
5
3
2
4
0
2
Sample
11
12
13
14
15
16
17
18
19
20
Number of
Breaks
3
4
6
7
8
6
5
7
8
6
Answer these questions:
a. Construct a c-chart to monitor this process.
b. Plot the c-chart graph.
c. indicate if the process was out of control at any time](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdd8d38b6-8b45-467e-8f82-5f63785df868%2F0604823b-0c33-4255-aaf2-61f63e2ca0be%2F2onoq7c_processed.jpeg&w=3840&q=75)
Transcribed Image Text:DIMU 2105 assignmen
QUESTION 2
One of the stages in the process of making denim cloth at the Southern Mills Company is to
spin cotton yarn onto spindles for subsequent use in the weaving process. Occasionally the yarn
breaks during the spinning process, and an operator ties it back together. Some number of
breaks is considered normal; however, too many breaks may mean that the yarn is of poor
quality. In order to monitor this process, the quality-control manager randomly selects a
spinning machine each hour and checks the number of breaks during a 15-minute period.
Following is a summary of the observations for the past 20 hours:
Sample
1
2
3
4
5
6
7
8
9
10
Number of
Breaks
3
2
4
1
5
3
2
4
0
2
Sample
11
12
13
14
15
16
17
18
19
20
Number of
Breaks
3
4
6
7
8
6
5
7
8
6
Answer these questions:
a. Construct a c-chart to monitor this process.
b. Plot the c-chart graph.
c. indicate if the process was out of control at any time
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