iSixSigma

Chris Butterworth

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  • #245796

    Chris Butterworth
    Participant

    Have a look at the binomial distribution for n = 40 and p = 0.125. You can see that it is reasonable to observe 5 defects in a sample of 40.

    But observing zero defects is improbable – it occurs less than 0.5% of the time.

    I hope this is helpful.

    Chris Butterworth

     

     

     

    binomial_40_0.125

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    #235307

    Chris Butterworth
    Participant

    Hi Tino,

    Get a copy of Design and Analysis of Experiments by Douglas Montgomery. Chapter 5 will introduce you to factorial designs with some very good examples. What you are asking about is rather straightforward and well-explained in Montgomery’s book.

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