[R] t-statistic for independent samples

[David Arnold]

OK,although the variance ratio was already 2.25 to 1,  tried sigma1=10,
sigma2=25, which makes the ratios of the variances 6.25 to 1.

Still no change. See: 
http://msemac.redwoods.edu/~darnold/math15/R/chapter11/DistributionForTwoIndependentSamplesPartII.html

D.



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