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The equal-variances test statistic ofis Student t -distributed with n 1 + n 2 degrees of freedom, provided that the two populations are normal.
The equal-variances test statistic ofis Studentt-distributed withn1+n2degrees of freedom, provided that the two populations are normal.
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Algebra And Trigonometry
Authors: Cynthia Y Young
3rd Edition
1118475755, 9781118475751
