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  • #179674

    S
    Member

    Team,
    Question was simple and I guess Sandeep’s reply would have answered.

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    #179673

    S
    Member

    Team,
    Question was simple and I guess Sandeep’s reply would have answered.

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    #172105

    S
    Member

    Well,
    The best option in my view is to present the data which can prove that the presentation is fake.
    In Six Sigma, its all about data.

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    #161809

    S
    Member

    Yea, so it’s homework. This sigma calculation stuff is pretty stupid. Just help me and let me get on with something useful.

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    #145752

    S
    Member

    Thanks Thomas! My email ID is [email protected].

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    #128815

    S
    Member

    I am very interested in this as well, because the company I work for has NOTHING.  There are not very many of the originally trained BBs remaining in the company because of this.  I take it by the lack of response that no one else has a process either, or at least not a good one?

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    #125015

    S
    Member

    As you said it is a standard valueit should be greater than or equal to 1.33Sathis

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    #115044

    S
    Member

    Excellent post.  Thanks for the insight.

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    #115027

    S
    Member

    Andy,
    Do you monitor your multiple streams using a Hotelling’s T^2???
    And if you detect an out of control situation, do you have to revert to a traditional Shewhart chart to determine which stream is causing the issue?

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    #115026

    S
    Member

    Marnie,
    Try this page.  It has some useful explanations.
    https://www.isixsigma.com/tt/cause_and_effect/

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    #115024

    S
    Member

    Almost.
    X-bar R charts are used if your subgroup size is 10 or fewer.  Larger than 10 you can use the X-bar S.
    If your subgroup size is 3-5 (let’s say 5) and you have 50 measurements, you would have 10 subgroups charted on an X-bar R chart.

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    #114479

    S
    Member

    Here’s the answer to your homework problem.
    https://www.isixsigma.com/forum/showmessage.asp?messageID=63583

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    #113936

    S
    Member

    Mike,
    I was interested in that item you had regarding project selection.  We launch fairly well here but didn’t know if you would share it with someone from the old GenCorp roll out days…  I tried to email you twice but can’t get my mail system to deliver…maybe I’m mistyping I’s and L’…..
     
    Please reply to me at [email protected]    Thank you very much in advance.

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    #113410

    S
    Member

    Lass,
    I haven’t done a manual t-test in quite a while but are you SURE? that the sample size of n1+n2 would determine which t curve you used?
    Don’t have my Box Hunter Hunter to check.

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    #113404

    S
    Member

    Let me throw this out …
    I have often used Z distribution to compare a single data point relative to a population with a known standard deviation
    T-tests which are just comparing populations of means–e.g. why the distribution changes depending on the degrees of freedom, sample size.  It is true that the t-distribution effectively follows the z distribution for samples sizes of 30. 
    T-tests are conservative since the tails are longer so to get 95% confidence the required delta between test statistics and “estimated population means” is larger since the area under the tails is higher with t- curves.

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    #110647

    S
    Member

    Issa,
    What was the point of this bitterly sounding story? 
    What I take out of the story was either 1. management had a very poor rollout or 2. the “reputable” consulting firm delivered a poor strategy and/or training or 3. you did not beat your head against the brick wall until someone saw you had some partial explanation for the failings at the facility you worked. 
    Blackbelts, MBB, Greenbelts must show some leadership and guts to get the status quo to change.  No one has ever said change wasn’t easy.  Remember that how the message is delivered can impact whether management is convinced.
    I’m worried about how bitter your post sounded and how close of a description of what and where the facility is.   

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    #110126

    S
    Member

    stuck with…..is not descriptive of the issue

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    #107794

    S
    Member

    :)
    LOL….yes

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    #107792

    S
    Member

    Heebeegeebee BB,
    Your name is difficult to type :).  I believe 4.5 sigma actually is 3.4 DPMO if one looked up the distribution.  That’s why the believers in the shift say you need to have a 6 sigma level (short term capability) such that in the long term you only have 3.4 DPMO–I subscribe to this line of thinking.  Sigma level is defined as the capability in the short term so I think it’s important to keep in mind which DPMO, short or long term, is quoted with the sigma level. 
    Even if you are referring to the 1.5 shifted sigma level, at 3 Sigma, the DPMO would be 66807 not just 60,000–a difference of nearly 10%.

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    #106967

    S
    Member

    define DV and PV please….not familiar with that acronym… 
     
    Thanks..

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    #105157

    S
    Member

    ok…i can’t get it to download with the macros… what settings do i need to change?  it says no signature so macros are disabled…
     
    thanks ahead for the help

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    #105148

    S
    Member

    AMEF?  What does that acronym stand for?

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    #105004

    S
    Member

    Depressed,
    A couple of thoughts…
    1.  See if your company offers private counseling.  Many offer this as a way to keep up employee productivity and you can use it to see if you have an issue that might take some counseling.  Often if your company offers something like CompPsych it allows for 3 free or VERY low cost sessions.
    2.  If you have the right company environment where employee development exists, consider asking for mentoring or direct, immediate feedback from someone you admire and trust.  I’ve had good mentoring in the past and used this technique on some of my weaknesses. 
    3.  Remember that not many good people will worry too much about the past and are concerned about the present.  Concentrate on the here and now and be proud of your accomplishments. 
    4.  One other explanation–the company culture may not be what you want.  As a mentor of mine said, if you are a great basketball player, you won’t succeed well in a football environment (paraphrasing LOL …). 
    Good luck…

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    #102934

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    Member

    It is my opinion that it has nothing to do with whether or not these organizations have a Six Sigma program.  Ford and GM have long been banking on the fact that US consumers are going to only buy American made vehicles.  Now that more people are buying “foreign” vehicles (due to reliability and price), Ford and GM are trying to play catch-up.  Six Sigma (and Lean) are certainly a means of getting there but the level of maturity of the programs should also be considered. 

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    #60179

    S
    Member

    I apologize.  Your original post did not indicate that you were destructively testing the product.
    What type of process is this?  Are your lot sizes truly of size four or less?  Is each “lot” of a different grade of material?  Please provide more information about the product and the process.

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    #60177

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    Member

    With a lot size that small, you will have to inspect 100% in order to have any type of confidence in the quality of your shipment.

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    #60167

    S
    Member
    #95245

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    Member

    I would start with:
    Seeing if any survey or other inititive has been under way to find out what your customers want.
    Do you have any financial plan gaps that need to be closed?
    Is associate attrition OK?
    Then drill down with projects.
     
    S

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    #73739

    S
    Member

    Ouh.. I don’t know, may be a spell checker would help?

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    #72467

    S
    Member

    Here’s an opinion.  After nearly 20 years as a measurement and control engineer (IEng), and a few months as a trainee blackbelt, I am still struggling with the (apparently) overcomplex approach that SS takes to measurement systems.  If the process is not operator dependant, nor subject to the effects of environmental influences, then surely your calibration accuracy (error as percentage of point/full scale + calibration systems uncertainty) sets the standard for your results accuracy.  Only if this equipment is capable of generating different results depending on its utilisation would I consider a full R+R study.
    Only my opinion – my MBB would probably have more to add!!!

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Viewing 30 posts - 1 through 30 (of 30 total)