An ad agency tracks the​ complaints, by week​ received, about the billboards in its​ city:                                                         Week No. of Complaints 1 8   2 4   3 11   4 16   5 8   6 9     This exercise contains only parts​ a, b, and c. ​a) The type of control chart that is best to monitor this process is c minus chartc−chart   . ​b) Using z​ = 3​, the control chart limits for this process are​ (assume that the historical complaints rate is​ unknown):   UCLc ​=? complaints per week ​(round your response to two decimal​ places).   LCLc ​=? complaints per week ​(round your response to two decimal​ places).

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...
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1.

An ad agency tracks the​ complaints, by week​ received, about the billboards in its​ city:
 
                                                     
Week
No. of Complaints
1
8
 
2
4
 
3
11
 
4
16
 
5
8
 
6
9
 
 
This exercise contains only parts​ a, b, and c.
​a) The type of control chart that is best to monitor this process is
c minus chartc−chart
 
.
​b) Using z​ =
3​,
the control chart limits for this process are​ (assume that the historical complaints rate is​ unknown):
 
UCLc
​=?
complaints per week ​(round your response to two decimal​ places).
 
LCLc
​=?
complaints per week ​(round your response to two decimal​ places).
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