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May 29, 2015

Homework Help: Stats

Posted by Student on Tuesday, August 12, 2008 at 12:34pm.

If we are testing for the difference between the means of 2 independent populations presumes equal variances with samples of n1 = 20 and n2 = 20, the number of degrees of freedom is equal to

a) 39
b) 38
c) 19
d) 18.

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