Please I need answer to part C

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

300300

records typed by these operators has been noted, as follows:

Sample No.	No. Defectives	Sample No.	No. Defectives	Sample No.	No. Defectives
1	77	11	55	21	1616
2	55	12	44	22	1212
3	2020	13	1616	23	77
4	1111	14	44	24	77
5	1010	15	1010	25	1313
6	77	16	99	26	1010
7	1212	17	1313	27	1414
8	99	18	33	28	55
9	66	19	1919	29	1111
10	1212	20	1717	30	33

a) Establish 3 sigma

upper and lower control limits.

UCL Subscript p UCLp = .064

(enter your response as a number between 0 and 1, rounded to three decimal places).

LCL Subscript pLCLp =.002

(enter your response as a number between 0 and 1, rounded to three decimal places).

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 is always a positive number.

C. Since the upper control limit cannot be a negative number.

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

Your answer is correct.

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 as

the standard at Birmingham Bank.

Click to select your answer(s) and then click Check Answer.