The Quality Control Manager at a Credit Card Collection Center is concerned about how many complaints the
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Question:
The Quality Control Manager at a Credit Card Collection Center is concerned about how many complaints the company is getting from customers. The following data were collected for 15 days of operation:
-------Sample Number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Number of Complaints: 12 0 4 9 14 6 2 10 10 3 9 4 2 7 9
Determine lower and upper control limits for the number of complaints they should expect each day using three-sigma limits.
options:
.751 , 13.121 | |
1.502 , 11.83 | |
0 , 14.412 | |
0 , 16.994 | |
None of the Above |
Related Book For
Basic Business Statistics Concepts and Applications
ISBN: 978-0132168380
12th edition
Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel
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