Question: You want to develop a three-sigma R chart. You know the average range is 5 based on 5 samples of size 8. Which of the

You want to develop a three-sigma R chart. You
You want to develop a three-sigma R chart. You know the average range is 5 based on 5 samples of size 8. Which of the following is the resulting UCL? (Use the value of D4 from the constants for calculating control limits.)

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