1) Estimate the process standard deviation o, using R.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4,,
Transcribed Image Text:- The quality engineer in charge of a salt packaging process is concerned
about the moisture content in packages of salt. Five packages of salt are sampled each time, and
the moisture content in each package is measured as the percentage of total weight. The data is
shown in the following table:
Sample
Sample Values
R
2.26
0,78
2.53
2.69
2.66
1,88
2.21
2.308
2.498
0,35
0.57
2
2.38
2.34
2.47
2.61
3
2.67
2.23
2.1
2.43
2.54
2.394
4
2.1
2.26
2.51
2.58
2.28
2.346
0.48
5
2.64
2.42
2.56
2.51
2.36
2.498
0,28
2.67
2.23
2.46
6
1.32
2.64
2.58
2.31
1.63
2.95
2.12
2.402
2.69
2.39
2.68
3.22
3.01
2.4
2.54
2.704
2,432
3.01
0.78
8
2.6
2.27
2,72
0,29
3.03
2.63
2.63
2,874
9
0.76
0.74
0.79
10
2.86
3.09
2.48
11
2.71
2.95
2.8
3.09
2.6
3.39
2.918
3.31
2.27
3.35
12
3.54
2.59
2.87
3.052
0.95
13
3.14
2.84
3.77
3.22
3.048
1.5
2.85
2.82
3.25
3.36
14
3.29
3.59
3.266
0.74
3.242
3,342
15
3.71
3.07
3.21
2.95
3.37
3.7
0.89
16
3.17
3.14
3.63
0.63
17
2.81
2.95
3.04
2.85
2.972
0.4
18
2.99
2.65
2.79
2.8
2.95
2.836
0,34
19
3.11
2.74
2.59
3.01
3.03
2.896
0.52
20
2,83
2.74
3.03
2.68
2.49
2.754
0.54
1) Estimate the process standard deviation o, using R.
2) Establish the control limits (UCL, CL, and LCL) for R chart. (Assume a = 0.0026)
Transcribed Image Text:3) Establish the control limits (UCL, CL, and LCL) for X-bar chart. (Assume a = 0.0026)
4) If the specification limits are 2.70 0.15, find the process capability indices Cp and Cpk.
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