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Equality of two variable means revisited

✍ Scribed by László Losonczi


Publisher
Springer
Year
2006
Tongue
English
Weight
204 KB
Volume
71
Category
Article
ISSN
0001-9054

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Testing equality of two normal means usi
✍ Willem Albers; Pieta C. Boon; Wilbert C.M. Kallenberg 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 399 KB

Since the two-sample t-test presupposes equality of variances, often a preliminary F-test is advised to check this assumption. However, very large sample sizes are necessary before this procedure behaves in a satisfactory manner. In the present note this phenomenon is explained using second-order as