THE 2-SAMPLE T-TEST VERSUS SATTERTHWAITE APPROXIMATE F-TEST
THE 2-SAMPLE T-TEST VERSUS SATTERTHWAITE APPROXIMATE F-TEST
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DOI：
10.1080/03610928908830135
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发表时间：
1989-01-01
影响因子：
0.8
通讯作者：
WATTS, CL
中科院分区：
文献类型：
--
作者：
MOSER, BK;STEVENS, GR;WATTS, CL
假设两样本t检验和Satterthwaite近似F检验之间的选择是基于对方差的初步检验，则对这两种检验进行了比较。推导出了试验的大小和功率的精确公式。然后计算并比较几种情况下的尺寸和功率。
A comparison between the two-sample t test and Satterthwaite's approximate F test is made, assuming the choice between these two tests is based on a preliminary test on the variances. Exact formulas for the sizes and powers of the tests are derived. Sizes and powers are then calculated and compared for several situations.