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Math Help - Sample Size Estimate

  1. #1
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    Sample Size Estimate

    Hi Everyone, I have a problem, and I'm not too sure how to do or even approach it.

    imgur: the simple image sharer

    Any light you can shed is greatly appreciated.
    Thanks!
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  2. #2
    Master Of Puppets
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    Now the mean is normally distributed with mu = 2 and sigma = 2, this should be clear.

    The distribution of the mean is therefore mu plus/minus Z times sigma/sqrt[n]. For the bounds given you need to back solve for n.
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