In statistical process cor Ol, the nouriy samples are taken. The sample means are: 156.46, 199.62, 189.31, 102.22, and 112.09 respectively. Also, the ranges of these samples are 11.97, 12.17, 13.94, 11.86, and 11.83 respectively. If the upper control limit of X-bar chart is 157.87, what is the sample size of each sample? О a. 7 O b. None is correct О с. 6 O d. 5 О е. 4

MATLAB: An Introduction with Applications
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In statistical process control, the hourly samples are taken. The sample means are: 156.46, 199.62, 189.31,
102.22, and 112.09 respectively. Also, the ranges of these samples are 11.97, 12.17, 13.94, 11.86, and
11.83 respectively. If the upper control limit of X-bar chart is 157.87, what is the sample size of each
sample?
O a. 7
b. None is correct
О с. 6
O d. 5
О е. 4
Transcribed Image Text:In statistical process control, the hourly samples are taken. The sample means are: 156.46, 199.62, 189.31, 102.22, and 112.09 respectively. Also, the ranges of these samples are 11.97, 12.17, 13.94, 11.86, and 11.83 respectively. If the upper control limit of X-bar chart is 157.87, what is the sample size of each sample? O a. 7 b. None is correct О с. 6 O d. 5 О е. 4
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