PLEASE HELP

Five data entry operators work at the data processing department of the Royal Bank. Each day for 30 days, the number of defective records in a sample of 350 records typed by these operators has been noted, as follows: Sample No. No. Defectives Sample No. Sample No. No. Defectives 1 2 3 18 12 5 19 10 10 4 5 6 7 8 9 8 4 gee71864 11 12 13 14 15 16 17 18 19 20 No. Defectives 5 5 15 3 10 7 13 3 19 21 22 23 24 25 26 27 28 29 30 8 13 11 13 7 13 11 10 17 2 a) Establish 30 upper and lower control limits. UCLP (enter your response as a fraction between 0 and 1, rounded to three decimal places). LCLp (enter your response as a fraction between 0 and 1, rounded to three decimal places). b) Why can the lower control limit not be a negative number? O A. Since the percent of defective records is always a positive number. O B. Since the upper control limit is positive. O C. Since the upper control limit cannot be a negative number. OD. Since the percent of defective records cannot be a negative number. c) The industry standards for the upper and lower control limits are 0.10 and 0.01, respectively. What does this imply about Royal Bank's own standards? The industry standards are those at Royal Bank