Activity
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DT replied to the topic PMP certification — a welcome addition to six sigma in the forum General 12 years, 7 months ago
I received my PMP in 2003, but had used its methodology for several years and I obtained my Black Belt in 2007. I prefer using PMP methodology on implementation type projects and the DMAIC methodology on improvement projects. Both methodologies are similiar in standards including proper steps, forms and over-communication, but Six Sigma’s reach…[Read more]
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DT replied to the topic +- 1.5 Sigma Shift in the forum General 18 years, 8 months ago
Hey Tim, thanks for the link, I guess I could have done that myself, sorry. But thanks again.
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DT replied to the topic Training in the forum General 20 years ago
These guys do Louisville for sure. [email protected]
Good luck
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DT replied to the topic Sample size…Why 30? in the forum General 20 years, 1 month ago
I would be VERY interested in the pointers for history or relevance of the 30 to samples…if its easier to email…
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DT started the topic Sample size…Why 30? in the forum General 20 years, 1 month ago
We recently concluded a GB training and the question of why a sample size of 30 was suitable and where it came from. (What if my population was less than this or was destructive in nature?) Im lost as there is conflicting data. One reference says determining the sample size depends on (1) the level of confidence (2) margin of error to…[Read more]
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DT started the topic Sample size…Why 30? in the forum General 20 years, 1 month ago
We recently concluded a GB training and the question of why a sample size of 30 was suitable and where it came from. (What if my population was less than this or was destructive in nature?) Im lost as there is conflicting data. One reference says determining the sample size depends on (1) the level of confidence (2) margin of error to…[Read more]
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DT started the topic Sample size…Why 30? in the forum General 20 years, 1 month ago
We recently concluded a GB training and the question of why a sample size of 30 was suitable and where it came from. (What if my population was less than this or was destructive in nature?) Im lost as there is conflicting data. One reference says determining the sample size depends on (1) the level of confidence (2) margin of error to…[Read more]
