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Sampling 4 pieces of​ precision-cut wire​ (to be used in computer​ assembly) every hour for the past 24 hours has produced the following​ results:                                                                                                                                                           Hour x R Hour x R Hour x R Hour x R 1 3.15​" 0.65​" 7 3.05​" 0.58​" 13 3.11​" 0.80​" 19 4.51​" 1.61​" 2 3.00 1.13 8 2.65 1.08 14 2.73 1.31 20 2.89 1.09 3 3.22 1.38 9 3.02 0.76 15 3.12 1.06 21 2.75 1.03 4 3.39 1.31 10 2.85 1.33 16 2.94 0.50 22 3.18 0.46 5 3.17 1.12 11 2.83 1.12 17 2.76 1.48 23 3.04 1.58 6 2.86 0.32 12 2.87 0.40 18 2.74 1.34 24 2.54 0.97   Based on the sampling​ done, the control limits for ​3-sigma x chart are ​(round all intermediate calculations to three decimal places before proceeding with further ​calculations)​: Part 2 Upper Control Limit ​(UCLx​) ​= enter your response here inches ​(round your response to three decimal​ places). Part 3 Lower Control Limit ​(LCLx​) ​= inches ​(round your response to three decimal​ places).

Sampling 4 pieces of​ precision-cut wire​ (to be used in computer​ assembly) every hour for the past 24 hours has produced the following​ results:                                                                                                                                                           Hour x R Hour x R Hour x R Hour x R 1 3.15​" 0.65​" 7 3.05​" 0.58​" 13 3.11​" 0.80​" 19 4.51​" 1.61​" 2 3.00 1.13 8 2.65 1.08 14 2.73 1.31 20 2.89 1.09 3 3.22 1.38 9 3.02 0.76 15 3.12 1.06 21 2.75 1.03 4 3.39 1.31 10 2.85 1.33 16 2.94 0.50 22 3.18 0.46 5 3.17 1.12 11 2.83 1.12 17 2.76 1.48 23 3.04 1.58 6 2.86 0.32 12 2.87 0.40 18 2.74 1.34 24 2.54 0.97   Based on the sampling​ done, the control limits for ​3-sigma x chart are ​(round all intermediate calculations to three decimal places before proceeding with further ​calculations)​: Part 2 Upper Control Limit ​(UCLx​) ​= enter your response here inches ​(round your response to three decimal​ places). Part 3 Lower Control Limit ​(LCLx​) ​= inches ​(round your response to three decimal​ places).

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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Sampling
4
pieces of​ precision-cut wire​ (to be used in computer​ assembly) every hour for the past 24 hours has produced the following​ results:
                                                                                                                                                         
Hour
x
R
Hour
x
R
Hour
x
R
Hour
x
R
1
3.15​"
0.65​"
7
3.05​"
0.58​"
13
3.11​"
0.80​"
19
4.51​"
1.61​"
2
3.00
1.13
8
2.65
1.08
14
2.73
1.31
20
2.89
1.09
3
3.22
1.38
9
3.02
0.76
15
3.12
1.06
21
2.75
1.03
4
3.39
1.31
10
2.85
1.33
16
2.94
0.50
22
3.18
0.46
5
3.17
1.12
11
2.83
1.12
17
2.76
1.48
23
3.04
1.58
6
2.86
0.32
12
2.87
0.40
18
2.74
1.34
24
2.54
0.97
 
Based on the sampling​ done,
the
control limits for ​3-sigma
x
chart are ​(round all intermediate calculations to three decimal places before proceeding with further
​calculations)​:
Part 2
Upper Control Limit
​(UCLx​)
​=
enter your response here
inches ​(round your response to three decimal​ places).
Part 3
Lower Control Limit
​(LCLx​)
​=
inches ​(round your response to three decimal​ places).
Part 4
Based on the
x​-chart,
the wire cutting process has been
 
 
.
Part 5
The control limits for the
​3-sigma
​ R-chart are ​(round all intermediate calculations to three decimal places before proceeding with further
​calculations)​:
Part 6
Upper Control Limit
​(UCLR​)
​=
inches ​(round your response to three decimal​ places).
Part 7
Lower Control Limit
​(LCLR​)
​=
inches ​(round your response to three decimal​ places).
Part 8
Based on the​ R-chart, the wire cutting process has been
 
 
.
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