Eric Maass

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!

2 months, 3 weeks 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

  2 months, 3 weeks 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 […] 7 years, 8 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. 7 years, 8 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 7 years, 8 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
7 years, 9 months ago

Hi Roger,

It sounds like you were given a set of individual cycle time measurements…and they want you to estimate the cycle time 80% of the time…Which is a rather vague request.
If they wanted you to tell them a value that 80% of the cycle time values are less than, then you would want to sort the data, and find the value that 80% are…[Read more]

Hi Miguel,
Can you clarify your request a bit?
LSC and USC – I assume you mean Lower Specl Limit and Upper Spec Limit?
Are you measuring yield for a continuous parameter? If so, what are the limits for that […] 8 years, 1 month ago

Thanks, John! You have an amazing breadth and depth of experience with developing great Excel add-ins and tools for Six Sigma and statistical efforts!

Best regards,
Eric 8 years, 2 months ago