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Calculations for the t-Test: Two Samples

Unpooled Variance

Unpooled Variance

This is the formula for a pooled variance in a two-sample t-test with unequal or equal sample sizes but unequal variances.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "Student's t-test."
    https://en.wikipedia.org/wiki/Student's_t-test Wikipedia CC BY-SA.

Related Terms

  • pooled variance
  • degrees of freedom
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