Here is a quick overview for an understanding a standard deviation chart data set. You can see how the examples of the data will fall within one standard deviation of the mean for approximately 68% of ...
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The following statements create and s charts for the diameter data: title f=qcfont4 'X ' f=swiss 'and s Chart for Diameter'; symbol v=dot c=salmon; proc shewhart data=toolwear; xschart diameter*hour / ...
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