A sample of 200 ROM computer chips was selected on each of 30 consecutive ...

     A sample of 200 ROM   computer chips was selected on each of 30 consecutive days, and the number of   nonconforming chips on each day was as follows: 7, 15, 22, 20, 37, 18,   7, 23, 11, 23, 29, 14, 14, 21, 16, 20, 17, 25, 10, 18, 17, 19, 13, 23, 33,   18, 11, 22, 13, 26. Construct a p chart and examine it for any   out-of-control points. (Round your answers to four decimal places.)