Question content area Part 1 Refer to Table S6.1 - Factors for Computing Control Chart Limits (3 sigma) LOADING... for this problem.   Twelve​ samples, each containing five​ parts, were taken from a process that produces steel rods at Emmanual​ Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results​ were:                                                                                                                              Sample Sample Mean​ (in.) Range​ (in.) Sample Sample Mean​ (in.) Range​ (in.) 1 12.202 0.033 7 12.203 0.041 2 12.202 0.041 8 12.205 0.034 3 12.193 0.034 9 12.193 0.027 4 12.206 0.051 10 12.203 0.029 5 12.195 0.031 11 12.203 0.039 6 12.199 0.036 12 12.204 0.047 Part 2 For the given​ data, the

Practical Management Science
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Chapter2: Introduction To Spreadsheet Modeling
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Part 1
Refer to
Table S6.1 - Factors for Computing Control Chart Limits (3 sigma)
LOADING...
for this problem.
 
Twelve​ samples, each containing five​ parts, were taken from a process that produces steel rods at Emmanual​ Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results​ were:
                                                                                                                            
Sample
Sample Mean​ (in.)
Range​ (in.)
Sample
Sample Mean​ (in.)
Range​ (in.)
1
12.202
0.033
7
12.203
0.041
2
12.202
0.041
8
12.205
0.034
3
12.193
0.034
9
12.193
0.027
4
12.206
0.051
10
12.203
0.029
5
12.195
0.031
11
12.203
0.039
6
12.199
0.036
12
12.204
0.047
Part 2
For the given​ data, the
x
​=
enter your response here
inches ​(round your response to four decimal​ places).
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Follow-up Question
Lower Control Limit
​(LCLx​)
​=
12.179412.1794
inches ​(round your response to four decimal​ places).
Part 5
Based on the
x​-chart,
is one or more samples beyond the control​ limits?
No
 
.
Part 6
For the given​ data, the
R
​=
enter your response here
inches ​(round your response to four decimal​ places).
Solution
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Follow-up Question

Lower Control Limit

​(LCLx​)

​=

enter your response here

inches ​(round your response to four decimal​ places).

Solution
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Follow-up Question
Based on the sampling​ done,
the
control limits for ​3-sigma
x
chart​ are:
 
Upper Control Limit
​(UCLx​)
​=
enter your response here
inches ​(round your response to four decimal​ places).
Solution
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