Problem:
The Capital Superstore decides to track customer complaints as part of their ongoing customer satisfaction improvement program. After collecting data for two months, their check sheet appears as follows:
Type of Problem Frequency (number of times)
Batteries not included 5
Items damaged when received 5
Literature not included in box 12
Parts missing 18
Unit not working 3
Item received late 7
Required:
Question 1) If they construct a Pareto chart, how many of these categories are required to make up 70 % of all complaints?
A. 1
B. 2
C. 3
D. 4
E. 5
Solve the problem and show all work.