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. 1 2 3 4 5 6 7 8 9 10 No. Defectives 8 6 19 10 10 9 11 9 5 12 Sample No. 11 12 13 14 15 16 17 18 19 20 No. Defectives 5 6 17 4 11 9 11 3 17 15 Sample No. 21 22 23 24 25 26 27 28 29 30 No. Defectives 17 13 5 8 13 11 15 6 13 4 a) Establish 30 upper and lower control limits. UCLP = (enter your response as a number between 0 and 1, rounded to three decimal places)