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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. 1 2 3 4 5 6 7 No. Defectives 10 a) Establish 3e upper and lower control limits 8 5 18 9 12 7 13 8 6 12 Sample No. 11 12 13 UCL, LCL b) Why can the lower control limit not be a negative number? 14 15 16 17 18 19 20 No. Defectives 6 5 16 3 10 8 13 4 18 16 Sample No. 21 OA. Since the upper control limit cannot be a negative number B. Since the percent of defective records cannot be a negative number. OC. Since the percent of defective records is always a positive number OD. Since the upper control limit is positive 7222222228 23 24 25 26 29 30 No. Defectives 16 13 7 7 0.076 (enter your response as a number between 0 and 1, rounded to three decimal places) 0.002 (enter your response as a number between 0 and 1. rounded to three decimal places) 14 10 13 6 11 2 c) The industry standard for the upper control limit is 0.10. What does this imply about Birmingham Bank's own standards? The Industry standard is not as strict as the standard at Birmingham Bank