Eric Maass

Hi Marc68

You could consider Preventative Maintenance for analytical instruments in the pharmaceutical industry to be a tradeoff between Risk and Cost. The statistical analysis comes in to play as a way to balance Risk and Cost.

Taking these to an extreme – if Risk was “high” and PM/Calibration was “free” (cost was “extremely low”), if three was…[Read more]

Hi Anonymous,

Yes, the best way to learn is to learn by doing – applying your new Six Sigma skills.

You could approach some managers at the local manufacturing plants, supermarkets, warehouses in your country and offer to work with them on a voluntary basis.

I can try to mentor you – you can contact me at [email protected]

Best…[Read more]

Buenos diaz, Carlos!  Welcome to iSixSigma – I hope you find lots of interesting information here and that you get a chance to exchange ideas with others on similar and diverging journeys!

1 year, 11 months ago

Hi Techyanuj,

Here is an isixsigma.com summary that you might find helpful:

https://www.isixsigma.com/new-to-six-sigma/design-for-six-sigma-dfss/dmaic-versus-dmadv/

Best regards,

Eric

  1 year, 11 months ago

Elena,

I suggest you click on “terms” and get rid of at least one of the highest order interactions, like “ABC” .

When you reduce the terms by taking a term out of the analysis, the degrees of freedom available for the error terms will increase and you should be able to see p values.

Also, you might want to click on the graphs button and…[Read more]

Hi Joppie,
The equation, r = +/- 1.96 sqrt(STDev), seems to use 1.96 for the 95% confidence interval that should include the mean measurement value. The term “repeatability” actually refers to the standard […] 9 years, 5 months ago

I skipped a step in sharing the search…
Here is the reference that the anonymous comment said was in error:

Schmidt, S.R. and R.G. Launsby, Understanding Industrial Designed Experiments, Air Academy Press, Colorado Springs, CO, 1997.

You could also get that from…[Read more]

Hi Luis,

Well, I checked out the articles from Quality Progress in 1997
( http://asq.org/qualityprogress/past-issues/index.html?fromYYYY=1997 ) and did not find the referenced article.

So, continuing on as a nerdy Sherlock Holmes, I found this comment:

QUALITY DIGEST | SAT, 06/05/2004
Hi, I noticed that you reference Schmidt &…[Read more]

I’ve recently seen some good results combining Value Stream Mapping and Discrete Event Simulation using Simul8. 9 years, 5 months ago

Hello, Luis,

I have never used that formula, preferring to use Excel’s built-in functions for cumulative normal distributions…but this is referred to as:
Schmidt S. and Launsby, Quality Progress, 1997

Best regards,
Eric 9 years, 5 months ago

Cathy,

There is no accrediting organization for six sigma / lean six sigma training providers.

The relevant question might be: after you are certified, will your certification be accepted and will you be considered credible as a certified green belt or black belt or whatever.

Now, I’m a certified Black Belt and Master Black Belt, from the…[Read more]

Valid,
What are you trying to mistake-proof: the tendency to have missing information in the first place, prompting the follow up…or something in the follow up procedure?
Best regards,
Eric
9 years, 5 months ago