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Math Help - Help Calculating Type II Error

  1. #1
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    Help Calculating Type II Error

    I have tried searching and I am still a little confused, so I thought just loading up the problem I am working on will help me understand this better.

    Quote Originally Posted by Problem
    A health insurer has determined that the "reasonable and customary" fee for a certain medical procedure is $1200. They suspect that the average fee charged by one particular clinic for this procedure is higher than $1200. The insurer wants to perform a hypothesis test to determine whether their suspicion is correct. Preliminary data analyses indicate that it is reasonable to apply a z-test. The hypotheses are

    H0 = $1,200
    H1 > 1,200
    σ = $180
    n = 38
    α=0.10

    Find the probability of a Type II error and the power for μ = $1075, $1100, $1150, $1175, $1190.

    Use the values to sketch a power curve.
    Any help is much appreciated.
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  2. #2
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    I've been asking for help and others just keep stating WHAT a type II error is, which I understand, but I am unaware of the procedure to calculate individual power statistics.
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