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  • @Hajo it’s not a matter of acceptance so much as it is a matter of physically not being able to generate large sample sizes and still remain in business. I’ve worked in specialty chemicals, plastics, aerospace, and medical and in each of these cases the cost of large sample sizes is prohibitive.

    For example, in the chemical industry the…[Read more]

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  • @rbutler, thanks for your statement. Myself I work in the german automotive industry where one’s requires at least 125 data points for the capability analysis. In many cases we have much higher sample sizes.
    I made a simulation with normally distributed random data, sample size 30. See pic enclosed. I wonder that you can accept such a high 95%CI.…[Read more]

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