iSixSigma

Chi-Square

Viewing 54 posts - 1 through 54 (of 54 total)
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  • #35857

    DW
    Participant

    When is the Chi-Square Test used??

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    #101708

    Ken Feldman
    Participant

    I believe you and your other 2 letter friends need to do a little searching on the Internet and procuring a basic statistics book.  You seem to be using this Forum as a Search Engine.

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    #101710

    R2D2
    Participant

    Light saber boy exercises rigorous rhadamanthine logic in question worthiness determinants.   He is master of the portal.   Do not ask another question implying that you need an answer.    Back away from your keyboard.   

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    #101743

    Bob J
    Participant

    DW,
    This may help….  https://www.isixsigma.com/dictionary/Chi_Square_Test-67.htm
    Best Regards,
    Bob J

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    #101766

    Ken Feldman
    Participant

    Dearest R2D2,
    I believe my posts have indicated that I have no reluctance to answer questions from those searching for answers or willing to debate issues of significance to the profession.  I just don’t believe posting on this Forum should substitute for a Search Engine for easily obtainable general questions.  That is why Google, Yahoo and others are around.  Heck, the questions I were referring to could have been found just by searching this site rather than posting.  If you noticed, the folks who did respond merely provided a link to a previous thread.  I just don’t believe in reinforcing people who are too lazy to take some responsibility for their own learning and professional development.  But, that’s just my opinion.

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    #101767

    Mikel
    Member

    You are not willing to help someone who has put absolutley no effort onf their own?
    The outrage! You will be hearing from your fans on this one!

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    #101774

    thnaks but no thanks
    Member

    Darth – We all agree you are smart and important to this world.  Do us all a favor and just go back to your defense of Bank of America’s fledgling six sigma program.  We all liked it better that way.  Your pretentiousness has become to much to tolerate these day’s.

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    #101777

    not “too” critical
    Participant

    I don’t want to impede your flow of criticism, however, when you say “to much to tolerate” in both instances the word should have been “too”.  Spelling checkers unfortunately do not check for poor grammar, but they would have caught the word “thnaks”.   I only point this out because your somewhat mean spirited criticism would be much more effective if you wrote like an adult.   Just my opinion, I could be wrong.   

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    #101781

    Mike Carnell
    Participant

    ntc,
    That is funny.
    Good luck.

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    #101783

    Saherngu
    Participant

    Why didn’t you use your other poster name used in this thread? By now, we all know who could miss the message completely but pick up misspellings because God knows that misspelling could drive him crazy.

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    #101790

    hjdsgyhcf
    Participant

    NATIONAL SPELLING BEE WAS LAST MONTH.

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    #101794

    Tim F
    Member

    >I don’t want to impede your flow of criticism,
    >however, when you say “to much to tolerate” in both
    >instances the word should have been “too”….
    >Just my opinion, I could be wrong. I don’t want to impede your flow of criticism,
    >however, when you say “to much to tolerate” in both
    >instances the word should have been “too”….
    >Just my opinion, I could be wrong. I don’t want to impede your flow of criticism,
    >however, when you say “to much to tolerate” in both
    >instances the word should have been “too”….
    >Just my opinion, I could be wrong. however, when you say “to much to tolerate” in both
    >instances the word should have been “too”….
    >Just my opinion, I could be wrong. however, when you say “to much to tolerate” in both
    >instances the word should have been “too”….
    >Just my opinion, I could be wrong. instances the word should have been “too”….
    >Just my opinion, I could be wrong. instances the word should have been “too”….
    >Just my opinion, I could be wrong. Just my opinion, I could be wrong. Just my opinion, I could be wrong. You’re right – you could be wrong. It is “too much to tolerate.” ;-)
    Tim FP.S. I hope I didn’t make any new errors, or this thread might go on forever.

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    #101799

    Ken Feldman
    Participant

    I hope the reference to “using your other thread name” was not aimed at me.  As I have stated a number of times and it should be obvious, I don’t have to hide behind additional pseudo names besides this one.  Maybe, and it is only supposition, there are others who feel that  posters have some responsibility prior to posting.  As for the criticism regarding “to” vs “too”, even that is a bit extreme for me. It is things like “Demming” that cause me to wonder.  The intent of my original response was to point out that asking what Chi-Square is and how it is used might have best been searched via standard search engines or even the Forum archives and not a general post.  The statement about pretensiousness should not be confused with a desire to raise the level of inquiry to this Forum.  If that is wrong and the intent of this forum is to answer any and all queries and reinforce the laziness of some posters, that’s fine.  But the proliferation of such questions along with the frequent personal attacks does detract from what should be the purpose of this Forum.  But, once again, that is just my opinion.

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    #101800

    Mikel
    Member

    If its any consolation to you – I knew it wasn’t you, I agree with your rebuff of the lazy posters, and I still respect you.
    But that is just my opinion and there is a very good chance I could be wrong.

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    #101802

    Ken Feldman
    Participant

    Great, now I feel better….Stan agrees with me.  That will now make me a sitting target for your Forum Stalkers…thanks a lot :-).   Hope the White Paper is going well since we are all looking forward to the Great Debacle…I mean Great Debate.

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    #101808

    Mikel
    Member

    The paper is submitted (two weeks ago). Where is Interested, I mean Statman Too, I mean – what was that guys real name?

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    #101809

    Mikel
    Member

    I’ll trade you Mike for any three of yours and a rookie to be named later.

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    #101810

    Just Curious
    Participant

    Darth,
    I am curious. What made you think that the poster was referring to you. After all, with 30 years of experience in quality, you would not do such a thing, would you? You have much more important things to do since you are honoring us by your presence in this forum.

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    #101811

    howe
    Participant

    Stan,
    All right, I really think you were raised like a spoiled child with a bad temper. Maybe you were your Ma’s one and only one, I don’t know. But I gotta admit your sense of humor. Ok, don’t expect more compliment from me because I still think you act like a jerk in this forum.
    Good Day!

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    #101812

    Taylor
    Member

    Boy Mike, that was a smoocher.    Stan was right, you are beginning to like him A LOT.    We’d prefer that you keep those inclinations out of the forum.    Yuuuuck!!!

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    #101814

    Mikel
    Member

    Mikey,
    You are coming around.
    And now if you just knew something you could contribute – send me your email address and I’ll ghost write something for you – people will never know it wasn’t you.

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    #101819

    carl la fong
    Participant

    Stan,
    Best response ever.    In fact, attached is my email address.  I’d also greatly appreciate it if you would write something both technical and witty for me to say.  Heck with Mike.  He can (or maybe not) fend for himself.  Thanks a bunch.  Carl
    [email protected]

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    #101820

    Savage
    Participant

    Actually it’s “too much to tolerate”    I hate to be picky, but that is correct.

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    #101821

    Mikel
    Member

    Done – check your email – enough stuff for a week or two.

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    #101822

    Mikel
    Member

    Carl,
    You gave me a fake email address- too bad – it was good stuff.

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    #101823

    howe
    Participant

    Stan,
    You are even dumber than I thought you were! And you still think you are contributing to this forum. I bet another person who thinks you are “contributing” is Darth. After all, you both have Deming’s 14 points on your desk.

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    #101824

    carl la fong
    Participant

    Come on Stan.  W.C. Fields in “It’s a Gift”.
    Insurance Salesman: Do you know a man by the name of LaFong? Carl LaFong? Capital L, small a, Capital F, small o, small n, small g. LaFong. Carl LaFong.
    Harold: No, I don’t know Carl LaFong – capital L, small a, capital F, small o, small n, small g. And if I did know Carl LaFong, I wouldn’t admit it!
    Now THAT’s good stuff….    Carl

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    #101826

    Mikel
    Member

    One thing for certain is that you are not contributing.
    Do you have anything to contribute? Do you know anything about any of this stuff?

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    #101828

    Mikel
    Member

    I feel violated.
    I still tried to send you good stuff. It was at least as good as a years worth of my contribution on here.

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    #101829

    not really Carl La Fong anyway
    Participant

    Oh, man…. now I really feel bad.    But, maybe I can help….  
     
    At the risk of further damaging an already fragile psyche, let me recommend a counselor on a web site I just found doing a Google Boolean search for the terms:  “mean old man” +violated    
     
    I found:  Diana Delaney, PHD (Rome, Italy) at http://www.counselingweb.com
     
    She appears to be a real babe (which I realize is irrelevant when you’re in a psychological crisis) and she says of her service:  Welcome to Interactive Counseling, where you will find confidential and professional counseling for conflicts relating to complex life situations. I’m here to listen without judging and assist without condescending.   
     Give her a broadband buzz.  It couldn’t hurt! 

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    #101831

    Savage
    Participant

    Not that Stan needs defending, but I agree with him.  Contribute something useful.  All I’ve seen from you is a personal attack.  Sh*t or get off the pot.

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    #101833

    Anonymous
    Guest

    Stan,
    Perhaps he’s trying to reigle after he found out about Gabriel’s spreadsheet, and the use of a Shewhart chart to estimate process performance.
    The shift is not greater than 0.5 sigma for a subset of 30, using a subgroup size of 3.
    The shift is also irrelevant since most process engineers use between 20 to 30 subgroups and parameter design to scale variance.
    Andy

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    #101834

    Anonymous
    Guest

    Stan,
    Perhaps he’s trying to reigle out of it after finding out about Gabriel’s spreadsheet, and the use of a Shewhart chart to estimate process performance.
    The shift is not greater than 0.5 sigma for a subset of 30, using a subgroup size of 3.
    The shift is also irrelevant since most process engineers use between 20 to 30 subgroups and parameter design to scale variance.
    If the shift is wrong – what else is wrong? DPMO, y = f(x), z-benchmarking –  watch this space; I’m going to debunk most of it. The sooner we get back to Quality Technology the better.
    Andy

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    #101838

    Ken Feldman
    Participant

    Mike,
    Once again, your information is incorrect and your contribution insignificant.  I have never claimed to have Dr. Deming’s 14 points on my desk.  I do, in fact, have a picture of me and him.  If you are going to maintain your credibility while stalking and trashing both me and Stan, please verify the accuracy of your statements otherwise we might lose respect for you and your continued contributions to the Forum.  Thank you for your consideration of this matter.

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    #101840

    Ken Feldman
    Participant

    Thank you for clarifying your posting.  As a matter of fact, it is 34 years of experience and I appreciate that you are honored by my presence on this forum.  Others are probably just glad I offer a useful tidbit now and then.  In the future, please take out any anger issues upon my alter ego, Stan.  I can now feel free to reveal that I have been posting under the name Stan which should satisfy your paranoid fantasies.  Chew on that one a while.

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    #101842

    lin
    Participant

    Can we start calling you Starth?

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    #101845

    Sigmordial
    Member

    Tell me this is not one of those: “Luke, I am your Father” moments!

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    #101850

    Starth
    Member

    Better than saying, “Luke, I am really your Mother.”

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    #101860

    MB
    Participant

    Bob,
    Thank-you for providing substance in your response to DW!  It appears that most of the responses to his question went off on some tangent discussion about who cares what!  Good Lord people get a life!

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    #101862

    CLF
    Participant

    Bob, I agree fully. 
    Folks, posters in this forum are serious about expanding their Six Sigma knowledge, stick to the questions asked and respond in kind.  This tangential stuff – well, not even truly tangential, more completely off-target and a waste of everyone’s time – has to stop.  As Bob said, get a life.
    Although I agree with you Bob, thinking about it, I did enjoy the Carl La Fong stuff…     Carl

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    #101871

    SJ
    Member

    Stan,
     
    Reigle is touring India with the other self-aggrandized bonehead Mike. They are billing him as the “Father of Six Sigma” again. It looks like the spin-doctor was getting caught up in all his exaggerations here so he decided to try to sack another country. We have seen the cowboy stuff with Tweedle Dee and Tweedle Dum then the suits came out as he and Reigle sold the “I will submit it to Dr. Harry” spin. What will he morph into in India? With hero worshipers like Praveen bowing at his feet he will pull it off there for a while.
     
    Did you catch Reigle’s confession on the IT discussion forum? After all his posturing about what an experienced deployer of Six Sigma he was he admitted he has never done a full deployment. No wonder he has to live vicariously though Mikel. Come to think of it Mikel hasn’t actually done one either.

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    #101881

    Mikel
    Member

    I’m distraught.
    I always fantacised that my alter ego was a tall, sleazy, voluptuous, blonde who calls herself Nell.
    Now I find out it’s Darth!
    I don’t know what to do with myself. 
    At least I had an idea when I thought I was Nell.

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    #101935

    Tate r tot
    Member

    Stan – Looks like Mikel and Riegle are after some Six Sigma Curry. 

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    #101941

    Gabriel
    Participant

    Hey, I am not the right person to say this since I am not a ntive English speaker (not a very good English-as-second-language one either) and I know that I make a lot of mistakes when typing in this forum, but….
    “to much to tolerate” in both instances the word should have been “too”
    I belive that the first istance should be “too” (more than enough) and the second instance should be just “to” (the preposition)?

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    #101955

    fernando
    Participant
    #101977

    Bal
    Participant

    I have been checking this forum for sometime.  Never have posted, just use it as a research tool.  But……Wow, I had no idea statistic geeks where so angry.  To have an ego over such postings is silly, reminds me of my sons video game forums.
    If you don’t like a persons post on a forum, past over it.  IF they ask a question that is ‘too’ low for you….IGNORE IT.  That is the key to life.  I feel sorry for those of you, whom cannot master such a simple skill.  Forums allow people, any and all people to post…there is no warning on the forum to present statistical skills before doing so. 
    There is no such thing as a dumb question, everything we have learned…was once new to us as well.
    Go drink a beer, get laid and enjoy life.  This forum isn’t ‘real’.  We are all tough guys and geniuses hiding behind the monitor.
    Lighten up.

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    #101982

    agree, but…
    Participant

    Please look over my recommendations:
    I have been checking this forum for sometime.  Never have posted, just use it as a research tool.  But……Wow, I had no idea statistics geeks where so angry.  To have an ego over such postings is silly, reminds me of my son’s video game forums.
    If you don’t like a person’s post on a forum, pass over it.  IF they ask a question that is ‘too’ low for you….IGNORE IT.  That is the key to life.  I feel sorry for those of you, who cannot master such a simple skill.  Forums allow people, any and all people to post…there is no warning on the forum to present statistical skills before doing so. 
    There is no such thing as a dumb question, everything we have learned…was once new to us as well.
    Go drink a beer, get laid and enjoy life.  This forum isn’t ‘real’.  We are all tough guys and geniuses hiding behind the monitor.Lighten up.

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    #101992

    Ken Feldman
    Participant

    Petty, even by my standards.

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    #101993

    Ken Feldman
    Participant

    Interesting that you took the time to make your first post a slap at frequent contributors.  I wonder why you have never made the effort to contribute to the Forum.  If you are unsure of yourself, why not start with the ever present simple question which would merely require you to use Google or Yahoo to find a link and then post it for the original poster so he/she doesn’t have to take the 30 seconds to do it.  That would be a good way to morph from Lurker to Contributor.  I look forward to your active participation rather than just criticisms.  And yes, there are dumb questions.  Not as a result of being “new to us” but for the fact that the answer can be easily gotten with a simple Web search.

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    #102004

    Bal
    Participant

    Thanks. Wouldn’t of wanted those minor typo’s to slide. I
    am a complete man now.

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    #104522

    Preeti SIngh Malik
    Participant

    Hello,
    The Chi-square test is used when my Y and X are both discrete . we can also tell it as contigency table, if my p value is <.05 then there is a significant difference between the propotions and we need to investigate further, e.g if me Y is ( discrete ) and X is also discrete I will go for Chi square if mY Y is discrete and X continuous than I can do any test……Also let me know Cna i perform a DOE with my X's and Y's discrete.
    Cheers

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    #104523

    Preeti SIngh Malik
    Participant

    Hello,
    The Chi-square test is used when my Y and X are both discrete . we can also tell it as contigency table, if my p value is <.05 then there is a significant difference between the propotions and we need to investigate further, e.g if me Y is ( discrete ) and X is also discrete I will go for Chi square if mY Y is discrete and X continuous than I can do any test……Also let me know Cna i perform a DOE with my X's and Y's discrete.
    Cheers

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    #104530

    Vishal Verma
    Member

    Hi Preeti,
    Both you and I are in the learning phase. I think even both of us can be a great help to each other. I can get the answers for you and in the next reply to this post, I will infact paste the answer. Hope both of us help each other and complete our projects. Best of luck….
    Vishal Verma
     

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    #104534

    Preeti SIngh Malik
    Participant

    Hi Vishal,
     
    That would be really great! and i appreciate that………..that would be very helpful to both of us. :) take care

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