Patient complaints. The following data were collected from the number of patient complaints from a small medical service facility over a two-week period. The past year the average number of complaints was 4.57. The management team would like to use that as a baseline for monitoring.

Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Complaints 3 6 1 2 12 5 7 0 4 6 3 5 2 8 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?