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Thanks so much for reading our publication. We hope you find it informative and useful. Happy charting and may the data always support your position.


Dr. Bill McNeese
BPI Consulting, LLC

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Comments (4)

  • AnonymousAugust 20, 2013 Reply

    Thank-you William, I thoroughly enjoy your writing. Very simple. Very clear. And always interesting. Michelle

  • M. Kashif AnsariFebruary 8, 2015 Reply

    very simple and good article. point is, always analyze data to realize the hidden value.

  • Hoang MeanAugust 3, 2020 Reply

    It is a useful article. Could you tell me how to calculte UCL and LCL for X-mR chart?Thank you. 

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