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Improvement Insights Blog
Posts tagged "Statistics"
Everyone thinks I’m a statistician by trade, but nothing could be further from the truth. Here’s my journey.
“Hi, this is Jay Arthur, author of “Lean Six Sigma Demystified” and the QI Macros [software]. I’m here in Maui Kaanapali Villas in Maui.
“One of the things that I want you to think about is because I wrote the QI Macros, everybody thinks I’m a statistician or something, but… the truth is a little bit further from that.
“Suzuki the Zen master had a story of four horses: One ran easily, one you had to flog it a little bit, one he had to flog a little more, and the fourth one you had to flog a lot to get it to move.
Continue Reading "Jay is the Fourth Horse of Statistics"
Posted by Jay Arthur in Improvement Insights, QI Macros, Statistics.
Statisticians say “correlation does not equal causation,” but what if we can prove cause and effect using new tools? The Book of Why, by Judea Pearl explains how this new science of cause and effect has shifted statistics over the last 30 years.
Continue Reading "The Book of Why?"
Posted by Jay Arthur in Improvement Insights, Statistics.
I’ve noticed a disturbing trend. Customers call us wanting to know all of the background about the hows, whys and formulas of a chart. I think they are afraid someone will challenge or ridicule their analysis. Here’s what I think.
Continue Reading "Fear of Ridicule and What to Do About It"
Posted by Jay Arthur in Improvement Insights, QI Macros, Six Sigma, Statistics.
If you’re not getting the results you want from Six Sigma, there might be a problem in the development of your projects.
Here are some of the mistakes I see in Six Sigma projects.
Continue Reading "More Six Sigma Project Mistakes"
Posted by Jay Arthur in Improvement Insights, Six Sigma.
People have been trying to make statistics simple and easy to understand for decades.
But statistics aren’t simple. Maybe we should change how we teach them?
Continue Reading "Statistics are Simple"
Posted by Jay Arthur in Improvement Insights, QI Macros, Statistics.