Number of Number of Sample Leaky Tubes Sample Leaky Tubes 1 4 6 6 8 7 10 3 12 8 9 4 11 9 5 12 10 8 Total 85

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...
Question

Breeze Toothpaste Company has been having a problem
with some of the tubes of toothpaste leaking. The tubes are packed
in containers with 100 tubes each. Ten containers of toothpaste
have been sampled. Th e following number of toothpaste tubes
were found to have leaks:

Develop a p-chart with 3-sigma control limits and evaluate
whether the process is in statistical control.

Number of
Number of
Sample
Leaky Tubes
Sample
Leaky Tubes
1
4
6
6
8
7
10
3
12
8
9
4
11
9
5
12
10
8
Total
85
Transcribed Image Text:Number of Number of Sample Leaky Tubes Sample Leaky Tubes 1 4 6 6 8 7 10 3 12 8 9 4 11 9 5 12 10 8 Total 85
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