Variance inflation is a problem frequently encountered by Six Sigma Black Belts who are performing regression analysis. It can lead to serious problems with the analysis, such as regression coefficients with the wrong sign. Listen to this podcast to learn about variance inflation factors, a metric that quantifies variance inflation.

episode 016-Variance inflation factor

Six Sigma Pointers is hosted by Tom Pyzdek, author of The Six Sigma Handbook and noted authority on process excellence. The podcasts cover all important aspects of Six Sigma and process excellence, including lean, quality, and many other topics.

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Radio host Robert Skrob asks Tom about Six Sigma. What is it? How is it useful to small businesses? Can it be used to improve sales, marketing, operations? This wide-ranging interview covers a tremendous variety of topics relating to business process excellence.

Interview with Business Profits Radio

Let's be honest, America's healthcare non-system has its problems. What are the root causes? Do any of the proposed solutions address them?


Why Healthcare Quality Stinks in America

Kaizen means "improvement" in Japanese. In Japan businesses view Kaizen as a way to engage everyone in improvement without spending much money. Improvements are usually small, and overall improvement is gradual. Americans have little patience for such an approach. This podcast describes the American version of Japan's successful approach to improving products and processes.


Episode 027-American Kaizen

What can you do to help yourself and your organization during tough times? Tom provides a few pointers to help.

Episode 026-Tough Times and Lean Six Sigma

There are many reasons an organization might consider doing Six Sigma. For example, survival! This podcast presents a list of 10 other reasons.

episode 016-Variance inflation factor

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