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Category Archives: Statistics
Six Sigma and Process Drift
Quality Quandaries: Six Sigma, Process Drift, Capability Indices, and Feedback Adjustment by George Box and Alberto Luceno. This article is for the more statistically inclined. The Six Sigma specification makes an allowance of 1.5 standard deviations for process drift. Simple … Continue reading
Posted in Management Articles, Manufacturing, Process improvement, Quality tools, Six sigma, Statistics
Tagged George Box, Six sigma, SPC, Statistics, variation
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Using Design of Experiments as a Process Road Map
Using Design of Experiments as a Process Road Map by Davis Balestracci: The current design of experiments (DOE) renaissance seems to favor factorial designs and/or orthogonal arrays as a panacea. In my 25 years as a statistician, my clients have … Continue reading
Posted in Design of Experiments, Management, Process improvement, Statistics
Tagged Design of Experiments
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Quality, SPC and Your Career
Lead To Succeed [sigh, ASQ broke the link so I removed it, it sure gets tiring how backwards some organizations still are about using the internet, June 2010] by Stephen S. Prevette: * Succeed as a quality professional by branding … Continue reading
Posted in Career, Deming, Management, quote, Statistics, Systems thinking
Tagged Career, leadership, managing people, Quality tools, SPC, Statistics
2 Comments
Box on Quality
Dr. George Box is not as well known in the general management community as his ideas merit (in my biased opinion – photo of Bill Hunter and George Box). He is well know in the statistics field as one of … Continue reading
SPC: History and Understanding
SPC: From Chaos To Wiping the Floor [broken link removed 🙁 it will be nice when sites start to realize breaking links is not acceptable] by Lynne Hare (who also was the 1997 Hunter Award winner) Shewhart based control chart … Continue reading
Measurement and Data Collection
This is my response to the Deming Electronic Network message (the site is dead, so I removed the link) on measurement. I find it useful to ask what will be done with the results of data collection efforts (in order … Continue reading
Posted in Data, Deming, Management, quote, Statistics
Tagged continual improvement, curiouscat, Data, Deming, evidence based management, quote, Statistics
5 Comments
Statistics for Experimenters Data
Topic: Statistics, Six Sigma, Management Improvement Data files for Statistics for Experimenters: Design, Innovation, and Discovery , 2nd Edition by George Box, Stu Hunter and Bill Hunter, are available online. We maintain on online resource for those using Statistics for … Continue reading
Posted in Books, Management, Statistics
1 Comment
Statistical Consulting
In the current issue of AMSTAT News (American Satistical Association) the President’s letter is focused on Statistical Consulting and W. Edwards Deming. He makes a good point, echoing those others have been making for quite some time: More and more, … Continue reading
Posted in Deming, Management, Statistics
1 Comment
Managing with Control Charts
Ideas from the Tiger’s Head by Simon Caulkin, The Observer. This is a remarkably nuanced short article on control charts given that it is a newspaper article (which normally overly simplify such concepts to the point not much of value … Continue reading
Has Six Sigma been a failure?
My response to the message, Has Six Sigma been a failure? (broken link was removed) on the Deming Electronic Network email list (DEN). I think Six Sigma has been a success. Do I think it the best option? No, I … Continue reading
