Question: You are developing a three - sigma X - bar chart. You draw 1 0 samples with 5 observations in each. You know the

You are developing a three-sigma "X-bar" chart. You draw 10 samples with 5 observations in each. You know the average ranges is 10 and the average of the sample means is 24. which of the following is your UCL? a.30 b.24 c.12 d.44 e.27

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