Category Archives: Statistics

Friday Fun: Correlation

Posted on March 6, 2009 by John Hunter

From the excellent xkcd comic. Related: Correlation is Not Causation – Does the Data Deluge Make the Scientific Method Obsolete? – Understanding Data – Theory of Knowledge – What Makes Scientists Different 🙂 – Dangers of Forgetting the Proxy Nature … Continue reading →

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Helping Employees Improve

Posted on February 12, 2009 by John Hunter

One aspect of managing people is to provide positive feedback and show appreciation. Doing so is important. People benefit from encouragement and reinforcement. In addition to just telling them, take action to show your appreciation. The Dilbert workplace is alive … Continue reading →

Posted in Deming, Fun, Management Articles, Popular, Respect, Software Development, Statistics, Toyota Production System (TPS) | Tagged , , , , , , | 2 Comments

Statistics for Experimenters in Spanish

Posted on January 5, 2009 by John Hunter

Statistics for Experimenters, second edition, by George E. P. Box, J. Stuart Hunter and William G. Hunter (my father) is now available in Spanish. Read a bit more can find a bit more on the Spanish edition, in Spanish. Estadística … Continue reading →

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ASQ William Hunter Award 2008: Ronald Does

Posted on November 12, 2008 by John Hunter

The recipient of the 2008 William G. Hunter Award is Ronald Does. The Statistics Division of the American Society for Quality (ASQ) uses the attributes that characterize Bill Hunter’s (my father – John Hunter) career – consultant, educator for practitioners, … Continue reading →

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Full and Fractional Factorial Test Design

Posted on July 29, 2008 by John Hunter

I am a fan of design of experiments as long time readers know (see posts on design of experiments). Continue reading →

Posted in Design of Experiments, Process improvement, Statistics | Tagged , , , | 3 Comments

Improvement Through Designed Experiments

Posted on February 4, 2008 by John Hunter

The Rationale of Scientific Experimentation by John Dowd explains the value of designed experiments. Another difficulty in industrial experimentation is the existence of interactions. As has been stated, manufacturing processes are complex with many factors involved. In many processes these … Continue reading →

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Prediction Markets with Google Employees

Posted on January 10, 2008 by John Hunter

Another interesting experiment from Google: Using Prediction Markets to Track Information Flows: Evidence from Google In Google’s terminology, a market asks a question (e.g., “how many users will Gmail have?”) that has 2”5 possible mutually exclusive and completely exhaustive answers … Continue reading →

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Stratification and Systemic Thinking

Posted on January 6, 2008 by John Hunter

I am reading a fascinating book by Jessica Snyder Sachs: Good Germs, Bad Germs. From page 108: At New York Hospital, Eichenwald and infectious disease specialist Henry Shinefield conceived and developed a controversial program that entailed deliberately inoculating a newborn’s … Continue reading →

Posted in Creativity, Data, Deming, Health care, Innovation, Management, Quality tools, Science, Statistics, Systems thinking | Tagged , , , , , , | 2 Comments

Bigger Impact: 15 to 18 mpg or 50 to 100 mpg?

Posted on December 24, 2007 by John Hunter

This is a pretty counter-intuitive statement, I believe: You save more fuel switching from a 15 to 18 mpg car than switching from a 50 to 100 mpg car. But some simple math shows it is true. If you drive … Continue reading →

Posted in Data, Psychology, Science, Statistics | 3 Comments

Fooled by Randomness

Posted on October 30, 2007 by John Hunter

This is a nice article discussing how people are often fooled by thinking there must be special causes for patterns in random data. I still remember my father showing my classes these lessons when I was in grade school. Playing … Continue reading →

Posted in Data, Management, Statistics, Systems thinking | 3 Comments