Discuss the below:
Q: The postmaster of a small western town receives a certain number of complaints each day about mail delivery.
Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Number of complaints 4 10 16 8 9 6 5 14 13 7 6 4 2 10
a. Determine two-sigma control limits using the above data.