Question: help fast pls! Statistical Quality Control. You are developing an X-bar chart based on sample means. You know the standard deviation of the process is

help fast pls! help fast pls! Statistical Quality Control. You are developing an X-bar chart

Statistical Quality Control. You are developing an X-bar chart based on sample means. You know the standard deviation of the process is 7 , the desired confidence level is 99.86 percent (i.e., z =3 ), the average of the sample means is 24 , and number of observations for each sample is 4 . Which of the following is your UCL? 32 24 34.5 36

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