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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 10.802 0.044 7 10.803 0.021 2 10.800 0.051 8 10.807 0.058 3 10.791 0.042 9 10.793 0.039 4 10.808 0.037 10 10.803 0.038 5 10.797 0.048 11 10.803 0.054 6 10.801 0.053 12 10.806 0.061 Part 2 For the given​ data, the x ​= 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 10.802 0.044 7 10.803 0.021 2 10.800 0.051 8 10.807 0.058 3 10.791 0.042 9 10.793 0.039 4 10.808 0.037 10 10.803 0.038 5 10.797 0.048 11 10.803 0.054 6 10.801 0.053 12 10.806 0.061 Part 2 For the given​ data, the x ​= 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
10.802
0.044
7
10.803
0.021
2
10.800
0.051
8
10.807
0.058
3
10.791
0.042
9
10.793
0.039
4
10.808
0.037
10
10.803
0.038
5
10.797
0.048
11
10.803
0.054
6
10.801
0.053
12
10.806
0.061
Part 2
For the given​ data, the
x
​=
enter your response here
inches ​(round your response to four decimal​ places).
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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).
 
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