iSixSigma

Ritz

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  • You guys/gals are not quite clear on either of these replies.  I’ll try to keep this fundamental, so no cheap shots on precision … the original poster wanted something simple.
    The 95% confidence level indicates that you can be 95% certain that the true population mean resides within the Sample.  It has nothing to do with 95 of 100 being “…[Read more]

  • Ritz replied to the topic Haiku Friday: 08 FEB 07 in the forum General 12 years, 10 months ago

    So dark, the limit-
    less variation of the
    ignorant rabble

  • Ritz replied to the topic DPMO in the forum General 13 years, 8 months ago

    Thanks. What is an opportunity?

  • Soderborg’s article is worthless.  The “assumptions” he cites as causes of failure are about as vague and useless as most of the reponses in this thread.
    Interesting to note that most of the key individuals that developed DCOV at Ford are not cited in the article.  They were a good group that did their best in an extremely challenging e…[Read more]

  • Ritz replied to the topic Six Sigma Claim in Dilbert? in the forum General 14 years ago

    You’re welcome.  The whole thread called that scene to mind.
    I thought about paraphrasing it, but did a google search.  Amazing how many movie scripts are out there online.  Was a quick copy/paste.
    Guess I should have cited the source:  Screenplay, The Princess Bride, by William Goldman
    Have a good weekend.
    Ritz

  • Ritz replied to the topic Six Sigma Claim in Dilbert? in the forum General 14 years ago

    Why bother Mike?  You can’t have a battle of wits when your opponents don’t have any.  Reminds me of a great scene:

    MAN IN BLACK (Carnell): All right: where is the poison? The battle of wits has begun. It ends when you decide and we both drink, and find out who is right and who is dead (who has lied).
    VIZZINI (Erin, Tom, et al): But it’s s…[Read more]

  • Ritz replied to the topic Global warming.. in the forum General 14 years, 1 month ago

    Monk,
    I firmly disagree, until you list sources of critical factors that are inputs into the model you are trying to create and establish statistical evidence of the relationship.
    I do not believe that a few decades worth of data points is sufficient in determining climate change on a global scale when the average climate cycle can last over…[Read more]

  • Ritz replied to the topic Global warming.. in the forum General 14 years, 1 month ago

    Monk,
    1) I’m not sure yet, but probably
    2) Most likely, but I really don’t know
    3) No
    Discussion:
    1) I can’t say that using a structued approach is needed to tackle this “problem”, since no one has shown me evidence that a problem exists.  If I were convinced that a problem exists (through data), I would agree that use of a structured,…[Read more]

  • Ritz replied to the topic Global warming.. in the forum General 14 years, 1 month ago

    Respectfully, you and Julian are making a causal relationship statement without providing data and analysis to support it.  You have used the words “proven” and “proof” much too often and have moved the discussion beyond analysis into assumption.  As this thread has mentioned numerous times, be careful about your own preconceived notions.  Pl…[Read more]

  • Ritz replied to the topic TQM on Steroids in the forum General 14 years, 4 months ago

    Hehe.  When does Junior High School start this year?

  • Ritz replied to the topic six sigma in the forum General 14 years, 4 months ago

    No.
    UCL/LCL are control limits, USL/LSL are specification limits.  Control limits are calculated from the process data, specification limits are established (most often) by customer requirements.
    Navigate the blue bar to your left for more detailed information, or use a simple google search.
    Ritz

  • Andrew,
    No – they are critical inputs to your process and have a direct effect on your process capability to produce finished product that meets customer requirements / specifications.
    That said, you can split your overall process into sub-process components and measure the capability of each … the danger is losing site of the overall customer…[Read more]

  • Milton – did you even know that MJ is no longer in charge of Quality at BoA?  Good source work, and glad to see you are up to speed with what they are doing. 
    Oh yeah, Milton … there is no variation amongst the GE crowd.  They’re are all so credible.  BOAMBB might not say it, but you’re an a**.  My bet is that BoA is better off without you,…[Read more]

  • Ritz replied to the topic Process Capability in the forum General 14 years, 4 months ago

    I agree with Hans – it is rare that a post is worth saving, but this is one of them.  Well done Andy.

  • Ritz replied to the topic New Master Black Belt in the forum General 14 years, 4 months ago

    You gotta be joking….please tell me you’re joking…

  • Rahul,
    The data was randomly generated, and bounded, so I wouldn’t take the comments in the link as absolute.  I’m far from a distribution expert – I leave that to the true statisticians.
    What I do know is that Cauchy distributions have undefined skewness and kurtosis (and mean and standard deviation).  Why they measured it on that link is not s…[Read more]

  • Rahul,
    Try the following link for some more information:
    http://www.itl.nist.gov/div898/handbook/eda/section3/eda35b.htm
    If your data distribution is normal, I wouldn’t worry too much about kurtosis.  If your data is non-normal and kurtosis is “excessive” then you can begin to investigate why the distribution is flatter or more peaked than…[Read more]

  • Ritz replied to the topic Six Sigma Project in the forum General 14 years, 4 months ago

    Angry,
    Mahajan already answered your question.
    You are more than welcome to pose questions, just be prepared for sharp remarks for questions that are clearly uninformed.  If you do not know the fundamentals, how do you expect to complete a project?  If you won’t take some time to do some fundamental education and research as part of your p…[Read more]

  • Ritz replied to the topic Six Sigma Project in the forum General 14 years, 4 months ago

    HornJM,
    I thought you were the kind soul who was going to spoon feed them “hehe”
    Ritz

  • Ritz replied to the topic forecast Model for AHT in the forum General 14 years, 4 months ago

    Rahul,
    Depends on your software – feel free to email me the data: [email protected]
    Ritz
     

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