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Posts tagged "Statistics"

Why Are People Using Line and Bar Charts, not Control Charts?

If you look at improvement project posters at quality conferences around the country, you’ll find that almost everyone is using Excel line and bar charts. Even after decades of Six Sigma training and association membership. What’s the hold up? Here’s my take:

“Hi, I’m Jay Arthur, author of “Lean Six Sigma Demystified” and QI Macros [software].

“Every year I look at lots of improvement posters and I keep wondering, “Why isn’t anyone using the tools of Quality?” Control charts, Pareto charts, histograms… Most of them are just using plain old Excel line and bar charts. Now it might be because they don’t know about the power and beauty and how easy it can be now to do Control charts, Pareto charts and fishbones.

Posted by Jay Arthur in Improvement Insights.

Cholera and COVID-19 Hot Spot Detection and Quarantine

There are COVID-19 hot spots and cold spots. How do we keep the cold spots open and detect and quarantine warming spots? Maybe statistical process control can help.


 

“Hi, I’m Jay Arthur, author of “Lean Six Sigma for Hospitals” and QI Macros [software].

“Back in the mid 1800s there was a cholera outbreak in London, and John Snow (not of Game of Thrones, but Dr. John Snow) said, “I think there’s a pattern here.” He went out and figured out that everybody who had cholera was getting water from the Broad Street pump. Back then, there was no indoor running water so you had to take your pail, go out to the pump and get your water for your home or your business or your restaurant.

Posted by Jay Arthur in Improvement Insights, Jay Arthur Blog, Six Sigma.

Agile Lean Healthcare Now

Coronavirus means that we can’t wait weeks for training and months for improvements. Healthcare has to embrace Agile Lean Six Sigma to handle an infection that could overwhelm existing care facilities. (Hint: This has nothing to do with doctors and nurses, but everything to do with the patient.) Here’s how to do it:

“Hi, I’m Jay Arthur, author of “Lean Six Sigma for Hospitals” and the QI Macros [software]. You know, I think we’re at this place in time where we can no longer wait two to four weeks for training and four to six to twelve months for projects to get done.

Posted by Jay Arthur in Agile Lean Six Sigma, healthcare, Jay Arthur Blog, Lean, Six Sigma.

Jay is the Fourth Horse of 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.

Posted by Jay Arthur in Improvement Insights, Jay Arthur Blog, QI Macros, Statistics.

The Book of Why?

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.

Posted by Jay Arthur in Improvement Insights, Jay Arthur Blog, Statistics.

Fear of Ridicule and What to Do About It

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.

 

Posted by Jay Arthur in Improvement Insights, QI Macros, Six Sigma, Statistics.

More Six Sigma Project Mistakes

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.

Posted by Jay Arthur in Improvement Insights, Jay Arthur Blog, Six Sigma.

QI Macros Upgrade 2017 V3

It took me 25 years to figure out how to make the QI Macros software do all this automatically, and now you can:
…analyze your data with the QI Macros Data Mining Wizard,
…have the QI Macros Chart Wizard choose which chart your need,
…allow the QI Macros Statistics Wizard analyze your data…

…ALL “AUTOMAGICALLY”! Upgrade your software to the latest version by 12/31/17, and take advantage of the $150 savings!

Posted by Jay Arthur in QI Macros.

Statistics are Simple

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?

Posted by Jay Arthur in Improvement Insights, QI Macros, Statistics.

Statistical Bullies

At IHI, I spoke with one Quality Improvement Adviser who was getting blow back from certain statisticians in her organization. They were challenging her methods and tools and analysis.

As I have written before, I call these folks “Stat Bastards” because they belittle others rather than help them.

As a member of the American Statistical Association, almost every statistician I meet is incredibly kind, generous and helpful. The few that flaunt their training rather than helping are impeding the forward progress of their organization.

I say, if they have better data, bring it. If they have better analysis, bring it. If they have better tools, bring it.

Posted by Jay Arthur in Six Sigma, Statistics.