LARS1216 06 SE INSERT 01 - University of Washington

From Larson/Farber Elementary Statistics: Picturing the World, Sixth Edition 2015 Pearson Two-Sample t-Test for the Difference Between Means and are unknown, the samples are random and independent, and either the populations are normally distributed or both > 30 and > 30): n2 n2 2 (Xl — X2) (Al — If population variances are equal, d.f. and 1 ................
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