LCLp = ____

b) Why can the lower control limit not be a negative number?

___ A. Since the upper control limit is positive.

___ B. Since the percent of defective records cannot be a negative number.

___ C. Since the percent of defective records is always a positive number.

___ D. Since the upper control limit cannot be a negative number?

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 __________ ( the same as / stricter than / not as strict ) the standard at Birmingham Bank.

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