Question: You want to develop a three-sigma R-chart. You know the average range is 12 based on several samples of size 8. Which of the following
You want to develop a three-sigma R-chart. You know the average range is 12 based on several samples of size 8. Which of the following is the resulting LCL? Group of answer choices 18.3 1.68 0 20 7.02
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