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Math Help - Confidence interval

  1. #1
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    Question Confidence interval

    Can anyone show me how to do this problem please?

    A stress test was completed for a group of 10 men subjected to a stress situation. The mean number of heartbeats per minute was 126, and the standard deviation was 4. find the 95% confiedence interval of the true mean?
    Last edited by mr fantastic; February 19th 2010 at 02:19 AM. Reason: Changed post title
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  2. #2
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    Quote Originally Posted by bathola View Post
    Can anyone show me how to do this problem please?

    A stress test was completed for a group of 10 men subjected to a stress situation. The mean number of heartbeats per minute was 126, and the standard deviation was 4. find the 95% confiedence interval of the true mean?
    Have you reviewed any examples from your class notes or textbook? Where are you stuck?
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