Using samples of 200 credit card statements, an Auditor found the following: Sample Number: 1 2...
Using samples of 200 credit card statements, an Auditor found the following:
Sample Number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Number of Errors: 27 25 26 29 27 25 29 28 31 30 28 27 29 24 29
Determine lower and upper control limits for the fraction of errors using three-sigma limits.
Question 5 options:
|
.077 , .198 |
|
|
.089 , .186 |
|
|
.064 , .211 |
|
|
.04 , .235 |
|
|
None of the Above |
Homework Answers
The statistical software output for this problem is:
Hence,
The control limits are:
0.064, 0.211
Option C is correct.
Add Answer to:
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Sample Number
Average Weight
1
654.9
2
603.8
3
623.7
4
606.7
5
618
6
584
7
569.8
8
606.7
9
609.5
10
572.7
11
575.5
12
569.8
13
615.2
14
595.3
15
612.3
16
606.7
17
578.3
18
646.4
19
598.2
20
586.8
21
612.3
22
635
23
603.8
24
598.2
25
569.8
26
601
27
64.2
28
598.2
29
612.3
30
603.8
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Sample Number
Average Weight
1
654.9
2
603.8
3
623.7
4
606.7
5
618
6
584
7
569.8
8
606.7
9
609.5
10
572.7
11
575.5
12
569.8
13
615.2
14
595.3
15
612.3
16
606.7
17
578.3
18
646.4
19
598.2
20
586.8
21
612.3
22
635
23
603.8
24
598.2
25
569.8
26
601
27
64.2
28
598.2
29
612.3
30
603.8
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