I need Upper Control Limit for P=

Lower Control Limit for P=

Five data entry operators work at the data processing department of the Birmingham Bank. Each day for 30 days, the number of defective records in a sample of 300 records typed by these operators has been noted, as follows: Sample No. No. Defectives Sample No. No. Defectives Sample No. No. Defectives 1 7 11 5 18 11 2 5 6 16 3 12 13 14 6 18 10 11 21 22 23 24 25 26 4 5 6 5 15 10 13 6 7 9 16 17 8 13 7 27 14 8 11 9 5 18 4 28 5 9 19 12 19 17 29 30 10 13 20 3 a) Establish 30 upper and lower control limits