Welcome to The Pyzdek Institute Newsletter
September 22, 2011
The Correct Control Chart for Most Attributes Data Encountered in Practice

Free Webinar to be Presented Wednesday, September 28    

Featuring David B. Laney, creator of the Laney p' Chart 

Free Webinar!
Learn about an exciting innovation in control charts

Join Thomas Pyzdek for an exciting free webinar presented by the Statistician who invented the Laney p' chart (p-prime chart.) The Laney p' Control Chart is an exciting innovation in statistical process control (SPC). The classic control charts for attributes data (p-charts, u-charts, etc.) are based on assumptions about the underlying distribution of their data (binomial or Poisson). Inherent in those assumptions is the further assumption that the "parameter" (mean) of the distribution is constant over time. In real applications, this is not always true (some days it rains and some days it does not). This is especially noticeable when the subgroup sizes are very large. Until now, the solution has been to treat the observations as variables in an individual's chart. Unfortunately, this produces flat control limits even if the subgroup sizes vary. David B. Laney developed an innovative approach to this situation which has come to be known as the Laney p' chart (p-prime chart.) It is a universal technique that is applicable whether the parameter is stable or not.

 

About Your Presenter, David B. Laney

David B. Laney
David B. Laney

David B. Laney worked for 33 at BellSouth as Directory of Statistical Methodology. He is a pioneer at BellSouth in TQM, DOE, and Six Sigma. David's p-prime chart is an innovation that is being used in a wide variety of areas. It is now included in many statistical applications, such as Minitab and SigmaXL. David is enjoying retirement with his family in the Birmingham, Alabama area.

 

To register for the 1:00PM EDT session click here 

 

To register for the 7:00PM EDT session click here 

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