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Math Help - Statistical Power

  1. #1
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    Statistical Power

    Here is the question:

    A machine is supposed to put 100 grams into a bag. If you know standard deviation (sigma) = 25 and you're testing at the 5% level of significance (i.e. alpha = 0.05), then find the power to find a change of 2 grams if sample size (n) is 100.

    I have no idea on how to set this up or solve it. Here's the actual assignment. It is question 3 a).

    Thanks a lot.
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  2. #2
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    Quote Originally Posted by palmeirinha View Post
    Here is the question:

    A machine is supposed to put 100 grams into a bag. If you know standard deviation (sigma) = 25 and you're testing at the 5% level of significance (i.e. alpha = 0.05), then find the power to find a change of 2 grams if sample size (n) is 100.

    I have no idea on how to set this up or solve it. Here's the actual assignment. It is question 3 a).

    Thanks a lot.
    The link is useless since a password is required.

    Does this assignment counts towards your final grade? MHF policy is not to help with such work. Thread closed (you can pm me to discuss this).
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