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Paired means test vs two-sample means test

  1. May 16, 2014 #1
    Paired means test vs two-sample means test [solved]

    Hi. When it comes to hypothesis testing, what is the difference between the two-sample tests and the paired test?

    I know one difference is that you use the latter when the two variables are dependant and the former when they're independent, but I don't know why.

    So can somebody please clarify this?
     
    Last edited: May 16, 2014
  2. jcsd
  3. May 16, 2014 #2
    Oops, silly me. I forgot that the variance of the two means in the tests is different. The interdependence of the means in the paired t-test make the variance different from the independent means in the two-sample t-test.

    OK I guess I answered my own question.
     
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