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    Edwardct's Avatar
    Edwardct Posts: 1, Reputation: 1
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    #1

    Apr 21, 2009, 08:15 AM
    Standard Deviation
    A medical researcher treats 100 subjects with high cholesterol with a new drug. The average decrease in cholesterol level is = 80 after two months of taking the drug. Assume that the decrease in cholesterol after two months of taking the drug follows a normal distribution, with unknown mean  and standard deviation  = 20.
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    Perito Posts: 3,139, Reputation: 150
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    Apr 21, 2009, 08:34 AM

    What's the question? I'm afraid I don't see a question.
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