Question: what is the answer ? 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.
what is the answer ?
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 controllimit of X-bar chart is 159.11, what is the sample size of each sample? O a. 7 O b. 6 None is correct d. 5 C. e. . 4
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