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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 9.602 0.033 7 9.603 0.041 2 9.602 0.041 8 9.605 0.034 3 9.593 0.034 9 9.597 0.027 4 9.606 0.051 10 9.601 0.029 5 9.599 0.031 11 9.603 0.039 6 9.599 0.036 12 9.606 0.047 Part 2 For the given​ data, the x double overbarx ​= 9.6013 inches ​(round your response to four decimal​ places). Part 3 Based on the sampling​ done, the control limits for ​3-sigma x overbarx chart​ are:   Upper Control Limit ​(UCL Subscript x overbarUCLx​) ​= enter your response here inches ​(round your response to four decimal​ places).

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 9.602 0.033 7 9.603 0.041 2 9.602 0.041 8 9.605 0.034 3 9.593 0.034 9 9.597 0.027 4 9.606 0.051 10 9.601 0.029 5 9.599 0.031 11 9.603 0.039 6 9.599 0.036 12 9.606 0.047 Part 2 For the given​ data, the x double overbarx ​= 9.6013 inches ​(round your response to four decimal​ places). Part 3 Based on the sampling​ done, the control limits for ​3-sigma x overbarx chart​ are:   Upper Control Limit ​(UCL Subscript x overbarUCLx​) ​= enter your response here inches ​(round your response to four decimal​ places).

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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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
9.602
0.033
7
9.603
0.041
2
9.602
0.041
8
9.605
0.034
3
9.593
0.034
9
9.597
0.027
4
9.606
0.051
10
9.601
0.029
5
9.599
0.031
11
9.603
0.039
6
9.599
0.036
12
9.606
0.047
Part 2
For the given​ data, the
x double overbarx
​=
9.6013
inches ​(round your response to four decimal​ places).
Part 3
Based on the sampling​ done,
the
control limits for ​3-sigma
x overbarx
chart​ are:
 
Upper Control Limit
​(UCL Subscript x overbarUCLx​)
​=
enter your response here
inches ​(round your response to four decimal​ places).
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