Construct the mean control chart and determine whether there is any cause for concern in the cutting process. Plot the information and look for patterns.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter14: Data Mining
Section14.2: Classification Methods
Problem 11P
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Problem 4
Sampling 4 pieces of precision cut hires (to be used in computer assembly) every hour for the past
24 hours has produced the following results:
Hour
Mean
Hour
Мean
R
3.25"
0.71"
13
3.11"
0.85"
3.10
1.18
14
2.83
1.31
3
3.22
1.43
15
3.12
1.06
4
3.39
1.26
16
2.84
0.50
3.07
1.17
17
2.86
1.43
2.86
0.32
18
2.74
1.29
7
3.05
0.53
19
3.41
1.61
8.
2.65
1.13
20
2.89
1.09
9
3.02
0.71
21
2.65
1.08
10
2.85
1.33
22
3.28
0.46
11
2.83
1.17
23
2.94
1.58
12
2.97
0.40
24
2.64
0.97
Construct the mean control chart and determine whether there is any cause for concern in the
cutting process. Plot the information and look for patterns.
Transcribed Image Text:Problem 4 Sampling 4 pieces of precision cut hires (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour Mean Hour Мean R 3.25" 0.71" 13 3.11" 0.85" 3.10 1.18 14 2.83 1.31 3 3.22 1.43 15 3.12 1.06 4 3.39 1.26 16 2.84 0.50 3.07 1.17 17 2.86 1.43 2.86 0.32 18 2.74 1.29 7 3.05 0.53 19 3.41 1.61 8. 2.65 1.13 20 2.89 1.09 9 3.02 0.71 21 2.65 1.08 10 2.85 1.33 22 3.28 0.46 11 2.83 1.17 23 2.94 1.58 12 2.97 0.40 24 2.64 0.97 Construct the mean control chart and determine whether there is any cause for concern in the cutting process. Plot the information and look for patterns.
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