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Math Help - z-statistics and t-statistics

  1. #1
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    z-statistics and t-statistics

    What are the differences between z-statistics and t-statistics?
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  2. #2
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    Quote Originally Posted by fancyface View Post
    What are the differences between z-statistics and t-statistics?
    The normal distribution (z-statistic) is used for large samples while the
    t-distribution (t-statistic) is used for small samples (that is up to and
    including sample sizes ~120)

    RonL
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