Question: If you are going to develop an X-bar chart based on range statistics and you are taking 20 samples, each time pulling 15 samples, which

If you are going to develop an "X-bar" chart

If you are going to develop an "X-bar" chart based on range statistics and you are taking 20 samples, each time pulling 15 samples, which of the following is the A2 factor for the "X-bar" chart? Select one: a. 0.31 b. 0.22 c. None of these are correct d. 0.48 e. 0.37 Next page

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