Complaint Calls Complaint Day Day Calls 1 27 16 19 2 15 17 12 3 38 18 17 4 41 19 18 5 19 20 26 6 23 21 31 7 21 22 14 8 16 23 18 9 33 24 26 10 35 25 27 11 26 26 35 12 42 27 20 13 40 28 12 14 35 29 16 15 25 30 15
The Great North Woods Clothing Company is a mail-order
company that processes thousands of mail and telephone or-
ders each week. They have a customer service number to
handle customer order problems, inquiries, and complaints.
The company wants to monitor the number of customer calls
that can be classified as complaints. The total number of
complaint calls the customer service department has received
Construct a p-chart for this process using 2 limits and for each of the last 30 weekdays are shown as follows:a. Construct a c-chart for this process with 3 control limits
and indicate if the process was out of control at any time.
b. What nonrandom (i.e., assignable) causes might result
in the process being out of control?
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