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 350 records typed by these operators has been noted, as follows: Sample No. No. Defectives Sample No. No. Defectives Sample No. No. Defectives 1 8 11 7 21 16 2 5 12 5 22 11 3 19 13 15 23 6 4 10 14 3 24 6 5 10 15 12 25 13 6 7 16 7 26 11 7 11 17 12 27 15 8 9 18 3 28 6 9 7 19 18 29 12 10 12 20 16 30 4 a) Establish 3σ upper and lower control limits. UCLp = . 055.055 (enter your response as a number between 0 and 1, rounded to three decimal places). LCLp =? (enter your response as a number between 0 and 1, rounded to three decimal places).
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 350 records typed by these operators has been noted, as follows: Sample No. No. Defectives Sample No. No. Defectives Sample No. No. Defectives 1 8 11 7 21 16 2 5 12 5 22 11 3 19 13 15 23 6 4 10 14 3 24 6 5 10 15 12 25 13 6 7 16 7 26 11 7 11 17 12 27 15 8 9 18 3 28 6 9 7 19 18 29 12 10 12 20 16 30 4 a) Establish 3σ upper and lower control limits. UCLp = . 055.055 (enter your response as a number between 0 and 1, rounded to three decimal places). LCLp =? (enter your response as a number between 0 and 1, rounded to three decimal places).
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
Related questions
Question
1.
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
350
records typed by these operators has been noted, as follows:|
Sample No.
|
No. Defectives
|
Sample No.
|
No. Defectives
|
Sample No.
|
No. Defectives
|
|
1
|
8
|
11
|
7
|
21
|
16
|
|
2
|
5
|
12
|
5
|
22
|
11
|
|
3
|
19
|
13
|
15
|
23
|
6
|
|
4
|
10
|
14
|
3
|
24
|
6
|
|
5
|
10
|
15
|
12
|
25
|
13
|
|
6
|
7
|
16
|
7
|
26
|
11
|
|
7
|
11
|
17
|
12
|
27
|
15
|
|
8
|
9
|
18
|
3
|
28
|
6
|
|
9
|
7
|
19
|
18
|
29
|
12
|
|
10
|
12
|
20
|
16
|
30
|
4
|
a) Establish
3σ
upper and lower control limits.UCLp
=
. 055.055
(enter your response as a number between 0 and 1, rounded to three decimal places).LCLp
=?(enter your response as a number between 0 and 1, rounded to three decimal places).
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