Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Question
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 =
(inches (round your response to four decimal places)SAVE
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