iSixSigma

John P.

Activity

  • John P. replied to the topic iSixSigma Magazine in the forum General 17 years, 6 months ago

    Hi all,The magazine is very good. I would have paid as much for the research, but they sent me a memory jogger also! Excellent research, writing and design..kudos to the isixsigma team. Cover to cover, it was an enjoyable read. I can’t wait for the next issue. Sincerely,John

  • John P. replied to the topic NON normal data in the forum General 20 years, 12 months ago

     
    Another point to consider is committing Type I and Type II errors.  If non-normal data is analyzed using an Individual Control Chart they you will get a lot of false positives i.e. Type I errors.  When the process is adjusted then your tampering and making the process go out of control.
    Another solution to for individual non-normal data is to…[Read more]