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Math Help - hypotheses Question

  1. #1
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    hypotheses Question

    Why do alphas differ among industries?
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by fancyface View Post
    Why do alphas differ among industries?
    Because hypothesis testing is part of a decision process, and costs, and
    benefits vary from case to case, so in the real world the error rates used
    in hypothesis testing vary from problem to problem according to the cost
    of wrong decisions

    RonL
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