Question


(p. 333) If you are going to develop an "X-bar" chart based on range statistics and you are using a sample size of 12 for your charting purposes. Which of the following is the A2 factor for the "X-bar" chart?

A. 0.37

B. 0.31

C. 0.27

D. 0.22

E. 0.18

Answer

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