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Math Help - Some Help, Please

  1. #1
    Junior Member
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    LA
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    Some Help, Please

    In A Random Sample of 678 ADULT MALES 20 TO 34 Years of age, it was deermined that 58 of them have hypertension.


    Part C-


    You wish to conduct your own study to determine the proportion of adults of 20-35 years old who have hypertension. What sample size would be needed for the estimate to be within 3 percentage points with 95% confidence if you use the point estimate in part a.


    part a was obtain a point estimate for the portion. 58/768=.085


    Okay this is what I did, .085(1-.085)(1.96/.03)^2 and I got 54.42...


    The answer is suppose to be 336, I am wondering what i did wrong here.
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  2. #2
    Junior Member
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    Jun 2013
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    Bangalore
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    Re: Some Help, Please

    Hi This Question is a totally Wrong.
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