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Math Help - t-test and significant results

  1. #1
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    t-test and significant results

    I've got a question about t-test and figuring out if it produces a significant result.
    I've got that the t-value must beat the critical value in order to produce a significant result.
    But I'm not sure if these next to apply to the t-test....
    1) the p-value is less that alpha and...
    2) the difference between the means is within the confidence interval

    If someone could just reassure me that these conclusions are correct it would be greatly appreciated.
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  2. #2
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    I'm a little unclear on your phrasing. It seems you get the main idea. But I'll illustrate with an example.

    If t-stat > critical value => significant
    If p-value < alpha => significant
    If the confidence interval does not contain 0 => significant

    I hope this helps
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  3. #3
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    Thanks, for the help.
    I was just making sure these are the three ways you could conclude that a t-test has produced a significant result.
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