iSixSigma

A.S.

Activity

  • A.S. replied to the topic P value in the forum General 13 years ago

    Thanks a lot Bower Chiel.
     
     

  • A.S. replied to the topic CpK in the forum General 14 years, 1 month ago

    thanks a lot kanwal .
    anbu
     

  • A.S. replied to the topic Different Variances? in the forum General 14 years, 7 months ago

    Is there any criteria for sample size while doing comparative study F 0r T test etc
    Sample need not be same size?
    If difference in sample size is allowed,how much?
     
     

  • A.S. replied to the topic Different Variances? in the forum General 14 years, 7 months ago

    Is it correct to compare 63 readings and 3 readings?
    Is there any logic in sample sizes?
     

  • A.S. replied to the topic GB Projects in the forum General 15 years, 7 months ago

    Green Belt projects have to be selected from black belt project as a child project.
    BB can help GB on specific tools and techniques
     

  • A.S. replied to the topic Quick Win Opportunity in the forum General 16 years, 2 months ago

    hope that this further explanation will help to have better clarity.
    Quick win opportunity is easy to implement,cheap to implement, fast to implement and it is within the teams control.
    It is a low hanging fruit,there is no need of much efforts to analyse and implement.
    For example after a process mapping we may have an opportunity to identify…[Read more]

  • A.S. replied to the topic t value in the forum General 16 years, 3 months ago

    Thanks george chynoweth and darth,
    What is the relation between p value and t value.
    How to calculate p value? how it is being done by minitab.
     

  • A.S. replied to the topic ISO and Six Sigma in the forum General 16 years, 3 months ago

    ISO certification process was diluted by more no of certification agencies as a part of their marketing strategy.ISO certificate has become an advertisement attraction Hence it is becoming a liability instead ofimproving the bottom.
    In 6S there is No external agency .No audit.No cheating.It will improve our bottom line.
    ISO basic intent is good…[Read more]

  • A.S. replied to the topic Round robin versus ANOVA in the forum General 16 years, 4 months ago

    My questions are what is round rabin ? and what is GLM?.
    For Operators comparison simple one way anova is adequate if you compare within a plant and other factors are constant.
    In one of my project Anova was used to compare the operators.Interesting thing is Anova done after two months has given totally different results when compared to…[Read more]

  • A.S. replied to the topic Process Capability in the forum General 16 years, 4 months ago

    If you are considering the total no of rooms to be cleaned (both occupied and vacant) as your subgroup,you can use NP chart instead P chart since your Sample size is constant.Hope that no of rooms to be cleaned is not varying on daily basis.No of rooms not cleaned can eb considered as Defective.
    Through control chart you can ensure the s…[Read more]

  • Thanks Ravi,
    My basic doubt is 99.99966% was arrived in what basis.Whether it is considering 12 -3 (1.5 +1.5) sigma or considering 12 -1.5 sigma.
    Subsequent post from BTDT confirms that it is consiodering 4. 5 sigma on both side.
    Thanks to BTDT. 
     

  • My understanding is at +/- 6 sigma ,
    Area under the curve is 99.9999998 % without considering the shift.
    Area under the curve is 99.99966 considering 1.5 sigma shift from the target.
    request some experts to clarify my doubt :whether this 1.5 sigma shift is +/- 1.5 sigma shift or totally 1.5 sigma shift?
    Waiting for doctors reply
     
     

  • As per my knowledge Binary logistic is to identify the relation between variable input Vs attribute output.i am not sure how you are using this to identify the outliers.
    hops that simple box plot and matrix plot is adequate.
    Hope that doctors of this forum will help us.

  • 99.73 % is with +/- 3 sigma.
    99.99966 % is with +/- 6 sigma.

  • A.S. replied to the topic where is the money in the forum General 16 years, 4 months ago

    To get the more financial benefits through six sigma project the first step is you have to identify the matrices / measurables.By doing global bench marking,identify the gaps as an opportunity.The same opportunity can be taken as project goal.
    Try to involve every one in six sigma.Cost reduction through too many channels never help you.

  • A.S. replied to the topic where is the money in the forum General 16 years, 4 months ago

    To get the more financial benefits through six sigma project the first step is you have to identify the matrices / measurables.By doing global bench marking,identify the gaps as an opportunity.The same opportunity can be taken as project goal.
    Try to involve every one in six sigma.Cost reduction through too many channels never help you.

  • A.S. replied to the topic Process Optimising in the forum General 16 years, 4 months ago

    By using Weigbull analysis,you can arrive a B10 life.Using B10 life you can fix the frequenccy.

  • Are you asking about sigma level calculation?
    Sigma levl of any process can be calculated using a formula
    Sigma Level = 0.8406 + SQRT (29.37-2.221 X lnPPM)
    Hope that thisis the required by you.
     

  • A.S. replied to the topic degrees of freedom in the forum General 16 years, 4 months ago

    Please let me have more light on this statement
    “but will be more important in further tools”.
    Please let me have clarity on significance of DF.Where it is more important apart from basic S.D calculation
     

  • A.S. replied to the topic Regression Analysis in the forum General 16 years, 4 months ago

    Thanks BTDT,
    Hope that for your example also normalization won’t help us.
    What’s your opinion about normalization of data before modelling.

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