Patient forms. The medical facility in Exercise 27 also keeps track of the number of errors found when transcribing information from patient forms. Last year the average num- ber of errors was 1.26 per day which the facility found ac- ceptable. Here are the past two weeks' data:
Based on last year, using a c chart:
a) What is the center line?
b) Calculate the upper control limit.
c) Calculate the lower control limit.
d) Create the c chart for this two-week period.
e) Is this process out of control?