A student of mine had numerous questions about the various statistics used in Six Sigma. Here is my response to him in an open email:
The questions you are asking regarding “Where do these statistics come from?” require entire courses in statistics to answer. In Lean Six Sigma we take information from a dozen or so statistics courses, project management courses, psychology courses, business courses, mathematics courses, etc. and put it into an action framework that can be used to make fast improvements. We probably present less than 10% of the information you would receive if you sat through all of these courses, but we do so in less than 5% of the time it would take to complete all of these courses. It’s a tradeoff. We make the greatest compromises in the field of statistics. We discuss the use and interpretation of a select subset of statistics, and answer the question “where do these statistics come from?” by saying “they come from computer software.” While most are...
Join us for a Free Webinar on February 1
No matter what your knowledge of Lean Six Sigma, come join us in a one hour lively discussion on “11 ways to Sink Your Six Sigma Project.” Master Black Belt Peter Bersbach will give an overview of each way, then open the session to a discussion on how to avoid that particular failure mode. No ideas are wrong, but we will learn different approaches we might use to avoid each of the 11 ways and have a very successful project.
Poor Project Selection
Defining Defects
Training Variation
Statistical Training
Shoddy Certifications
High Attrition Rates
Relying on GEMBA
Tool Application
Sustaining Results
Estimating Benefits
Six Sigma or Lean
Update:
Click here to view the recording of the webinar 11 ways to sink your six sigma project. Length 44:17. This was a great webinar with a lot of input from the audience.
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A student of mine had numerous questions about the various statistics used in Six Sigma. Here is my response to him in an open email:
The questions you are asking regarding “Where do these statistics come from?” require entire courses in statistics to answer. In Lean Six Sigma we take information from a dozen or so statistics courses, project management courses, psychology courses, business courses, mathematics courses, etc. and put it into an action framework that can be used to make fast improvements. We probably present less than 10% of the information you would receive if you sat through all of these courses, but we do so in less than 5% of the time it would take to complete all of these courses. It’s a tradeoff. We make the greatest compromises in the field of statistics. We discuss the use and interpretation of a select subset of statistics, and answer the question “where do these statistics come from?” by saying “they come from computer software.” While most are...