iSixSigma

Issa

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Viewing 81 posts - 1 through 81 (of 81 total)
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  • #124011

    Issa
    Participant

    So what?????

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    #123538

    Issa
    Participant

    I have the IQF study guide on my computer and I do not see anything serious about it. You do not need to know anything about statistics to do the tests. If you have Excel installed on your computer, it is all “copy and paste” and you get the answers right.
    I would be morally wrong to charge $1000 for the test. I have to cut it down to $100.
    With that price I am sure there is no way Stan and Co can compete against me.
    TQM failed not because it was not a good approach to management, but because everybody was doing it and very few knew what it was about. IQF program is one of those that will eventually make 6 sigma fail. You have a whole bunch of people going around in their companies calling themselves MBBs and they do not even know how to make the difference between ‘Range’ and ‘Standard deviation’.
    Issa

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    #123521

    Issa
    Participant

    Just think about it for a second. You take the test at your house without any supervision. No one is there to check your ID. You order a CD and you take the test on line. If you are desperate to pass the test the first time, pay me $1000 and I shall come to your house and at your convenient time and take the test for you, I can even take it at my house for you.
    IQF is the biggest joke 6 sigma has ever produced.
    How can any thinking human being take you seriously with that kind of certificate?

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    #122821

    Issa
    Participant

    I am glad that someone had enough sens to remove the unnecessary insults from the Forum.
    People come to the forum to have a pleasant, courteous, candid and uplifting discussion. We can be passionate without calling each other names. What did I do UFO to be called what he called me? He does not even know me. 
    If you leave the degrading comments on it, we just refrain from participating to the forum or go somewhere else. The forum makes people visit your site and you know it.
    Issa

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    #122809

    Issa
    Participant

    Control charts do not only depend on the sizes of the samples taken. Are you dealing with attribute or variable data?
    The determination of the nature of the Critical-to-Quality (CTQ)characteristics is the first step in evaluation the kind of chart to select.

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    #122734

    Issa
    Participant

    Stop it Stan!!!

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    #122654

    Issa
    Participant

    You guys are going down and dirty now. Don’t do that! we want a positive, candide and instructive conversation, not this cheap-chat so I order you to freeze it.

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    #122650

    Issa
    Participant

     UFO,
    I am not emmulating anybody. The guy is just becoming very annoying. No one can decipher his gibberish and he keeps coming back. I suggested that we discuss in Spanish but he does not want to, so screw him.
    Issa.

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    #122643

    Issa
    Participant

    Alvarez,
    Can’t you find yourself better to do than try to discuss a subject that you do not have any knowledge about?
    Get out of here!
    Go and buy a dictionary and a grammar book and learn to speak English. I am learning Spanish, do like me.
    Issa

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    #122553

    Issa
    Participant

    You sure did have good teachers! I was a teacher myself. I resigned because the school system had started to turn me into a sissy. Look at what is happening to our school system.

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    #122549

    Issa
    Participant

    I bet that student will never forget why he was so well motivated. That’s what I am talking about. Good teacher!!!!!!!

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    #122534

    Issa
    Participant

    Podemos hablar en Espanol, amigo.
    No tengo ningún problema que discute este tema en español o francés. Vayamos para él.

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    #122533

    Issa
    Participant

    I am not trying to be funny but you need to articulate a little bit better. I do not understand what your stance is.

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    #122528

    Issa
    Participant

    His name is not Sisheo Singo but Shigeo Shingo and he never called himself the “father of 4th industrial revolution”.
    Besides he “did not invent nothing” is not proper English. You say: “he did not invent anything”.
    I do not know where you are getting your information from but you need a little more reading.
    Issa

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    #122454

    Issa
    Participant

    It’s not funny. It’s just a question and the answer is:
    Yes there are or no there are not

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    #122088

    Issa
    Participant

    HiSide,
    You need to learn how to speak and write in proper English. I did not catch a word from your comments.
    Issa

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    #121910

    Issa
    Participant

    No VoteForPedro,
    The main purpose of Regression Analysis is not to just determine the level of correlation between magnitudes. If is instead to determine how the dependent variable Y reacts to variations of the independent variable X. Y = aX + b.

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    #121590

    Issa
    Participant

    Sue,
    Don’t tell your managers that you cannot achieve zero defect. You might get fired.

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    #121488

    Issa
    Participant

    Can you  be a little bit more precise? Your question is too vague.What kind of project are you working on? what kind of entreprise is it? What are you trying to optimize?

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    #120985

    Issa
    Participant

    What was the question?

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    #120984

    Issa
    Participant

    What makes you beleive that your CEO did not coin it himself? Are you suggesting that he lacks the intellectual capabilities to come up with something like that?

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    #120876

    Issa
    Participant

    Perky,
    I do not mean to be rude but that kind of question is so broad that I wonder how you can expect anyone to answer it. It’s hard to know what you are talking about.
     

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    #120690

    Issa
    Participant

    Este es un buen sito para aprender mas de Six Sigma o hay que ir al ASQ sito pero se necesito comprender ingles.
    Pero hay much sitos en espanol que ablan de Seis Sigma y estos son alguien: http://qualitypress.asq.org/spanish.html
    http://www.elprisma.com/apuntes/apuntes.asp?page=38&categoria=604
    http://www.gqs-inc.com/spanish/elearning.htm
    http://www.librosenred.com/autores/FernandoGonzalezaleuGonzalez.aspx

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    #120629

    Issa
    Participant

    Greenbelt is meaningless for someone with a Mastres degree, DFSS is not a certificate. If you feel comfortable with statistics, I would suggest that you go for the Black Belt.

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    #120480

    Issa
    Participant

    sathish,
    I hope that your BBA was in Mongolian or Swahili, because there is no way you can impress me with your kind of grammar and vocabulary and if you do not know the reason why you want to go for an MBA, you certainly should not go for it.

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    #120298

    Issa
    Participant

    One way of doing it would be to take samples of the products at given time intervals and tests them, and plot the results on a control chart. Since in the case of your product, the number of defects follows a Poisson distribution, it would be better to use a C-chart. If there is a way to test all the wholes at the same time using a single tool, that would be better, if not, I would suggest that you sample a number of holes on every part (not the same holes every time) and test them.

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    #120289

    Issa
    Participant

    He is trying to tell you that your question is too vague to generate an  intelligent answer.

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    #120217

    Issa
    Participant

    I have no idea what in the hell you are trying to say.

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    #120199

    Issa
    Participant

    For X-bar and R control charts , I expect the sub groups to be at least 20.
    Where did you get your info from?

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    #120191

    Issa
    Participant

    I can help your poker game. I am a six sigma expert and SS is a great tool for anything especially for poker game.
    Tell me exactly what you want and I shall help you.

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    #120103

    Issa
    Participant

    There are so many books that deal with that question, but none of them will give you a specific answer to your specific problem. You can go to Amazone.com or Barnes and Noble but I doubt that reading a book can in itself solve your problem.
    The way I select my projects is this:
    What department in a company is facing the most problems and needs urgent attention?
     I direct my resources (not necessarily financial) to that department. I gather a team composed of the stakeholders who can contribute to the problem solving including the line operators, even the janitors if they can be of some help. Armed with past data, we conduct brainstorming sessions and use all the quality tools at our disposal (Pareto analysis, Cause and effect analysis, regression analysis, control charts, process mapping, value stream mapping,… you name it), we work together in identifying the ways and means to improve the situation. We make projections on the financial impacts of the improvements because upper management usually likes it when you show bottom line improvement.
    I hope that this will help.
    Issa

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    #120094

    Issa
    Participant

    I recently conducted a Kaizen event for a Cellphone provider in their logistics department. By just applying the 5s in a small department of the company I evaluated the savings to amount to about $300,000.
    They were doing some crazy things such as mixing good phones with defective. They use RF guns to scan the products, every time they scan a phone and it shows that it is a duplicate, they throw it in a big bin along with the damaged products and they later on sift the good products from the bad ones and put them back in inventory, by the time they do it, half of the good products are damaged.
    I do not know what kind of business you are in but I am sure that there is a way to evaluate the benefits of Kaizen events if conducted properly.
    Issa 

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    #120090

    Issa
    Participant

    This is not a valid question and the ASQ site will not give you the answer to your question because they only know how many Black Belts they have certified. There are as many certifying boards as there are consulting firms and many companies certify their employees. So disregard the previous posting, its author does not even know how to start a project.

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    #120085

    Issa
    Participant

    I get very irritated when someone asks that kind of question. How can anyone help you if we do not know what kind of business you are in or what kind of data you have at your disposal.
    I wonder why your company chose you to improve sales if you do not know what to do.
     

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    #120084

    Issa
    Participant

    What’s the purpose of knowing how many black belts there are?
    What does it help you with?
    Stan, I like the ” .45″

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    #119784

    Issa
    Participant

    Why did you accept that job if you do not even know the answer to that question?

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    #119770

    Issa
    Participant

    Bob BaroneI can tell that you are not very much acquainted with Dr Taguchi if you believe that “”100 +/- 5%” means any value within those limits is equally acceptable.”
    This is a wrong statement. All the parts produced within these specified limits are not identical, do not operate the same way and therefore are not all “equally acceptable”. If one part is 95 and the other one is 105, how can you conclude that they operate the same way?
    If the target is 100, anything within the specified limits that is not 100 is just “good enough” not perfect and not “equally acceptable”.
    Issa 

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    #119706

    Issa
    Participant

    I would still proceed with a stratified sampling. I would conduct two surveys one for the heavy users and one for the others. Or I conduct one survey with 80% (or more or less) of the respondants comming from the group of the heavy users and a smaller percentage comming from the other group. The coefficient (percentage) that you affect to the groups should not be arbitrary, it should reflect the amount of time or the number of people in each group that use the application.

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    #119705

    Issa
    Participant

    If hundreds of thousands of parts are built every day and you perform a 100% testing on every part, what makes you beleive that you are collecting a sample? and why do you call it SPC?
    A 100% daily inpection on hundreds of thousands of items is certainly not cost effective and it will not provide a 100% defect free products to your customers. I do not know what you are producing but there must be a better way to do things.
    Issa

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    #119701

    Issa
    Participant

    Whoever told you to proceed with a stratified sampling is right. If the application is of no use to some of the employees even if they can access it, including them in the survey will result in a biased (or even erroneous) result.

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    #119699

    Issa
    Participant

    I can read. It is just that I cannot relate what you are talking about to our discussion. Maybe I am not as smart as you are.

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    #119697

    Issa
    Participant

    What the hell are you talking about?

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    #119691

    Issa
    Participant

    What makes you beleive that you will be blasted for what you said?
    You are absolutely right! I once worked for a company that decided to “go” six sigma and hired a consulting firm for that purpose. The management selected line supervisors and line leads to be trained, in less than a month, these people became black belts. You must have seen them walking around with their pompous torsos. None of them could give an accurate definition of six sigma, none of them could tell you the difference between the variance and the standard deviation.
    That’s why you see some stupid questions from some so called BB on this form that make you wonder.
    Once again I prefer the ASQ testing to the so called consulting firms.
    How can any one grasp all the statistics needed to be a SSBB in less than six months unless they had strong pre-diposiotions for it?

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    #119689

    Issa
    Participant

    ANOVA is a basic step in the Design Of Experiment (DOE), which is a powerful statistical tool aimed at statistically quantifying interactions between independent variables through their methodical modifications to determine their impact on the predicted variables.
    Tukey’s Honestly Significant Difference (HSD) Test is used after the ANOVA has determined if there is a significant difference between the means or not (that’s why it is called a posteriori test).
    The Analysis Of Variance and the Regression Analysis have this in common: Both seek to analyze the impact of independent variables on response variables. But while ANOVA seeks to define the scope of the variables that will be included in an experiment, the regression analysis determines the coefficients for each variable. The regression analysis can also be used to predict the behavior of the response variable, in that respect, the simple (linear) regression analysis is as you said a “plug and chug”.
    Issa

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    #119685

    Issa
    Participant

    What country are you calling from?

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    #119681

    Issa
    Participant

    You are doing things the right way. But before you start working on your model, I would suggest that you compare the historical data that you have with the historical statistics generated by your existing “in-house forecasting model”. In other words, compare the empirical evidence with what the existing model suggested. If the two are in sync, there may not be any need for a new model, but if there is a significant difference, you migh have to consider going back to your books and studying the regression analysis and the time series analysis. But then again, there are so many software vendors who have put out so many good tools for that purpose, but you still need to know the rationale behind the reasonning

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    #119679

    Issa
    Participant

    The problem with your book club is that the “participants were selected by the management”. The last time my management selected who should be “six sigma” or not, I was ignored and I was very angry. You know what I did?
    I went to study on my own and took tests and became a BB.
    A management that selects who should be part of a book club is not promoting the spreading of knowledge. There is a mountain of tacit knowledge that resides in every employee that needs to be discovered and exploited. You have managers in your company, not leaders. The difference between a leader and a manager is that the leader can instinctively see the potentials in his underlings and knows how to exploit it.
    I hate your management.
    Issa 

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    #63917

    Issa
    Participant

    I went to the Seattle World Conference on quality and Improvement organized by the ASQ that is currently taking place in Seattle. The4 quality of the participants talks for itself. They include such big names as Dr Taguchi, Feigenbaum…
    I ony stayed their for two days but boy!!!!
    Go for ASQ!

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    #119218

    Issa
    Participant

    I think that the best certification you can get will not come from the so called consultants but from the ASQ. Visit their site at: http://www.asq.org
     

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    #118572

    Issa
    Participant

    Reigle Stewart,
    I fully agree with you and I do not see any contradiction with what I said.

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    #118571

    Issa
    Participant

    If Cp < 1, the process is wider than the specifid limits, and is not capable. So why would you want to have a  Cp = 0.5?

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    #118565

    Issa
    Participant

    How can a process be in control and have too much variations? I can understand that an in-control process can have random variations but “too much variation” rimes better with assignable causes.

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    #118481

    Issa
    Participant

    You just do not need to pay anybody!

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    #118476

    Issa
    Participant

    Sam,
    Please, just think about it. It is just a methodology that you use to improve your business. whether you call it six sigma or anything else does not matter. Who on earth can make you pay for saying that when you are trying to solve a problem, you define define it first, gather data, measure it, analyze it, improve your process and control it?
    It you really want to pay for it, I am willing to accept the money.
    Issa

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    #117458

    Issa
    Participant

    Darth,
    Don’t be mad about us converting this forum to French.
    Le probleme avec Six Sigma en France est le peu de documentation dans ce domaine en francais. Je vis aux USA mais je voulais participer a l’introduction de Six Sigam dans des pays francophones. J’ai fait beaucoup de recherche mais les resultats sont limites.
    Si vous connaissez des ouvrages en francais, faites les savoir s’il vous plait.
    Merci d’avance
     

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    #117457

    Issa
    Participant

    Suresh,
    How can you involve your company in something that you do not know?

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    #117335

    Issa
    Participant

    Vinny,
    You really do not believe in paragraphs, do you?

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    #117031

    Issa
    Participant

    Darth,
    When I read your comments yesterday, I said to myself: “he is being mean again”.  But after I read Faceman’s comments (“You’re English is fine “), I said : “What’s going on here” and then I read Also Student’s comments (“I me too want to tank Mr. Mike an uthers for helping studnets like us.  Yu do not now how much time you save us by answring our qestions.  it wood tke me long time to do my homewurk and studies if i had to do myself.  we are happy our teachers do not look at this forum.  thank you”), I said maybe Darth is right after all. One of them might send you a resume when they get their PhD.

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    #116950

    Issa
    Participant

    Hey Anshika,
    the formula you gave him is not for the USL and the LSL, they are for the UCL and the LCL. There is a difference. Just re read what you said.
     

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    #116868

    Issa
    Participant

    Go to http://www.asq.org and you will find an answer to your question

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    #116704

    Issa
    Participant

    You can visit these two sites:
    http://www.iqfnet.org
    and http://www.asq.org
     

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    #56605

    Issa
    Participant

    The best site for quality materials would be
    http://qualitycouncil.com/

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    #114783

    Issa
    Participant

    What in the world do you mean by
    DOE – In this project,Experiment is done first and then we control the process.
    SIX SIGMA – In this Project, Control are identified first and then we do experiment?
    Where did you get that from?

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    #114738

    Issa
    Participant

    Sajay, None of the numbers you have given is correct. The table below contains the accurate numbers and there is no contradiction with them. They are derived from a normal curve that uses sigma scale.

    Range around ì

    % of products in conformance

    % of non conforming products

    Non conformance out of a million

     
    -1ó  to  + 1ó
     
    -2ó  to  + 2ó
     
    -3ó  to  + 3ó
     
    -4ó  to  +4ó
     
    -5ó  to  + 5ó
     
    -6ó to  + 6ó
     

     
    68.46
     
    95.46
     
    99.73
     
    99.9937
     
    99.999943
     
    99.9999998
     
     

     
    31.54
     
    4.54
     
    .27
     
    .0063
     
    .000057
     
    .00000002

     
    315400
     
    45400
     
    2700
     
    63
     
    .57
     
    .002
     

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    #114655

    Issa
    Participant

    You are absolutely right. Insist on DOE and ANOVA, study all the probabilty distributions including the Chi square, the t-distribution and understand you hypothesis testing very well before you do anything. All this you can find in any good college stat book.
    If you do not know your stat, do not waste your money. The whole exam is not about statistics, but it is the core of it and of course, you can take the advice from the previous caller to the bank.
    Good luck to

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    #114350

    Issa
    Participant

    Are you advertizing for the George Group or what? I know that it is a big name but are they really the best?

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    #114322

    Issa
    Participant

    Let me straighten up what I meant.
    Dr. Deming did not invent TQM but his contribution to the field of quality cannot be discarded when we talk about TQM. When the US Navy started TQM, they actually integrated the teachings of Deming, Juran, Feigenbaum and Crosby.
    Even though DeMoivre and Gauss were not alive when Statistical Process Control was invented, we cannot say that there inventions have nothing to do with SPC.
    That’s all I was trying to say. I know you are a Ph.D. and way more knowledgeable than I am but I do not believe that it is fair to say that Deming is not relevant to TQM.
     

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    #114319

    Issa
    Participant

    I think you are wrong

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    #114317

    Issa
    Participant

    I can’t help but say it, I like to read from Darth.

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    #114271

    Issa
    Participant

    Don’t be mean to her Darth

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    #114200

    Issa
    Participant

    Hey Darth,
    I hate to disagree with you but even though Deming did not coin the concept of TQM, most of the tools used by TQM can be traced to him. And for the sake fairness, we must acknowledge his contribution to TQM and even Six Sigma. After all Six Sigma has not really invented all the tools it uses. I just makes the best use of them.

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    #114199

    Issa
    Participant

    Alex, you do not know how right you are until you start to work with some of them. TQM failed not because it was not a good methodology but because some people did not know what it was about and failed to implement it properly. I worked for a company that had the same problem with its so called “Six Sigma Black Belt”. A company that has less than 1000 employees and about 7 “Six Sigma Black Belts” and it failed horribly because none of them could define standard deviation.

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    #114128

    Issa
    Participant

    Let me get the mess off the way first.
    My friend, you might have to review the chapter on process capabilities.
    Let me give you a hint.
    The process capability Cp is nothing but the ratio of the specified spread to the process spread, in this case:
     
    Cp = (USL – LSL)/ 4 sigma
     
    But for this case, we are interested in the tails of the curve outside the specified limits (process incapability, if you wish). And we have already determined that that spread is equal to 0.621, so all we need to do is divide it by the process spread which is 4 sigma.
    I hope that this will help.
    Issa 
     

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    #114126

    Issa
    Participant

    My friend, you might have to review the chapter on process capabilities.
    Let me give you a hint.
    The process capability  is nothing but the ratio of the specified spread to the process spread, in this case:  

    But for this case, we are interested in the tails of the curve outside the specified limits (process incapability, if you wish). And we have already determined that that spread is equal to 0.621, so all we need to do is divide it by the process spread which is .
    I hope that this will help.Issa  

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    #111978

    Issa
    Participant

    If you do not see Data analysis under Tools in Excel, click on Add-ins, put a chck mark on all the menu items and voila! you got it. You have a wonderful set of set of tools including ANOVA If it is not enough, download Anlyse-it with excel.

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    #111384

    Issa
    Participant

    Darth,
    You are one of the most reliable sources in this forum. Your contributions are always of a great quality.
    Thank you

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    #110809

    Issa
    Participant

    If you are not a professional what is the point in buying expensive software if Microft Excel has everything you might need for your survey?
    No matter what software you use you will need basic understanding of the meaning of some terms such as mean, standard deviation, range….
    I would advise you to buy a college stat text book to learn the basics.
    Issa

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    #110807

    Issa
    Participant

    You do not have to see a consultant to become Six Sigma BB. You can contact IQF (http://www.iqfnet.org) orASQ (http://www.asq.org)  and get the books and software you need for the certification. If  you want to take the test with IQF, it will not cost you more that $500.
    Good luck to you
    Issa

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    #110758

    Issa
    Participant

    Receiving defects back from the customers is always a bad thing. The only way it can help is in evaluating the VOC because they will tell you why they are returning the products. But I would not wait until the defects reach them before improving the process.

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    #110757

    Issa
    Participant

    You need to be more precise about what you need to know about warehouse management.You need info about software, books or what?

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    #110661

    Issa
    Participant

    I was not bitter about what happened. I was instead sorry that the failed. I was just trying to explain why I think that IQF is not worse than the so called tier consulting firms. I am a six sigma BB and I am diong pretty well.
    No grudge.

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