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Inspection Plan with Wrong Detection

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    Fausto Galetto
    Participant

    In a document in Research Gate (about Inspection) I read the following formula, about a random variable X:

    • the mean value E(X)=p*beta,

    where

    1.    “p is the probability that a product is REALLY defective”

    2.    “alfa is the probability that a product REALLY NON_defective is WRONGLY detected as defective”

    3.    “beta is the probability that a product REALLY defective is WRONGLY detected as NON_defective”

    In my opinion, E(X) cannot be the above formula.

    What do the iSixSigma experts think?

    THANKS in advance.

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