Table 15-2 Given the Sample Results (100 Units in Each Sample)

Multiple Choice

Table 15-2
Given the sample results (100 units in each sample) :
-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