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Math Help - Confidence Interval

  1. #1
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    Unhappy Confidence Interval

    In a random sample, 64 of 200 motorists stopped at a roadblock had not fastened their seatbelts. Construct a 95% confidence interval for the corresponding true proportion of motorists who do not fasten their seatbelt.
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  2. #2
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    Quote Originally Posted by GoDuke View Post
    In a random sample, 64 of 200 motorists stopped at a roadblock had not fastened their seatbelts. Construct a 95% confidence interval for the corresponding true proportion of motorists who do not fasten their seatbelt.
    Reply #3 of this thread: http://www.mathhelpforum.com/math-he...-homework.html

    gives an example you can follow.
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