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February 28, 2015

February 28, 2015

Posted by **maddy** on Saturday, October 6, 2012 at 8:39pm.

- statistics -
**MathGuru**, Monday, October 8, 2012 at 6:08pmDegrees of freedom for unequal sample sizes and unequal variances =

(s1^2/n1 + s2^2/n2)^2

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(s1^2/n1)^2/(n1-1) + (s2^2/n2)^2/(n2-1)

Note: ^2 means squared.

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