At Becta's Computer Manufacturing, the production team sampled four pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours; The following are the results produced (measured in cm): Hour xBar R Hour xBar R 1 3.25 .71 13 3.11 .85 2 3.1 1.18 14 2.83 1.31 3.22 1.43 15 3.12 1.06 4 3.39 1.26 16 2.84 .5 5 3.07 1.17 17 2.86 1.43 6. 2.86 .32 18 2.74 1.29 7 3.05 .53 19 3.41 1.61 8 2.65 1.13 20 2.89 1.09 3.02 .71 21 2.65 1.08 10 2.85 1.33 22 3.28 .46 11 2.83 1.17 23 2.94 1.58 12 2.97 .4 24 2.64 97 3. 00
At Becta's Computer Manufacturing, the production team sampled four pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours; The following are the results produced (measured in cm): Hour xBar R Hour xBar R 1 3.25 .71 13 3.11 .85 2 3.1 1.18 14 2.83 1.31 3.22 1.43 15 3.12 1.06 4 3.39 1.26 16 2.84 .5 5 3.07 1.17 17 2.86 1.43 6. 2.86 .32 18 2.74 1.29 7 3.05 .53 19 3.41 1.61 8 2.65 1.13 20 2.89 1.09 3.02 .71 21 2.65 1.08 10 2.85 1.33 22 3.28 .46 11 2.83 1.17 23 2.94 1.58 12 2.97 .4 24 2.64 97 3. 00
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
(a) Label and compute the necessary data needed to calculate the upper and lower limits for the xBar and the R charts.
(b) Develop the xBar and the R charts.
(c) Plot the information and look for patterns. Determine and explain whether there is any cause for concern in the cutting process.

Transcribed Image Text:At Becta's Computer Manufacturing, the production team sampled four pieces of precision-cut wire (to be used
in computer assembly) every hour for the past 24 hours; The following are the results produced (measured in
cm):
Hour
хBar
Hour
хBar
R
1.
3.25
.71
13
3.11
.85
3.1
1.18
14
2.83
1.31
3.22
1.43
15
3.12
1.06
4
3.39
1.26
16
2.84
.5
3.07
1.17
17
2.86
1.43
2.86
.32
18
2.74
1.29
7
3.05
.53
19
3.41
1.61
2.65
1.13
20
2.89
1.09
3.02
.71
21
2.65
1.08
10
2.85
1.33
22
3.28
.46
11
2.83
1.17
23
2.94
1.58
12
2.97
.4
24
2.64
.97
2.
6.
00
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