i need upper and lower

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 250 records typed by these operators has been noted, as follows: Sample No. Sample No. Sample No. No. Defectives No. Defectives No. Defectives 1 6 11 21 18 2 6 12 22 12 3 20 13 16 23 7 4 11 14 24 6 5 10 12 25 12 6 9 16 26 9 7 12 17 13 27 13 8 8 18 5 28 7 9 6 19 18 13 10 13 20 15 30 2 8 6 . 0 0 8 a) Establish 30 upper and lower controllimits. UCL - Center your response as a number between 0 and 1, rounded to three decimal places)