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?

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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. 4
O b. 7
O c. 5
O d. 6
O e.
None is correct
CLEAR MY CHOICE
S PAGE
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Transcribed Image Text:Time left 0:08:09 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. 4 O b. 7 O c. 5 O d. 6 O e. None is correct CLEAR MY CHOICE S PAGE NEXT PAGE
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