A company has been receiving complaints about the attitude of some sales clerks. Over a 10-day period, the total number of complaints was 250. The company wishes to develop a control chart for the number of complaints
What would the lower control limit on the number of complaints per day be for a 3 sigma (99.7%) control chart?
A) 20
B) 0
C) 15
D) 10
E) 202.6
D
Business
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