two-sample analog of Johnson's test improves upon Welch's technique in terms of Type I errors and power when sample sizes are small or moderately ... RR Wilcox - 《Biometrical Journal》 被引量: 66发表: 2010年 TESTING REPEATED MEASURES HYPOTHESES WHEN COVARIANCE MATRICES ARE HETEROGENEOUS: REVI...
The root of the tree consists of a test on the variable "sky" having two modalities {Clear; Cloudy}. In case the sky is clear, then the decision of the tree is "sun". In the opposite case, it is necessary to test the variable "temperature"; in the case where it is ∼ 0, ...
In statistics, Welch's t test is an adaptation of Student's t-test intended for use with two samples having possibly unequal variances. As such, it is an approximate solution to the Behrens–Fisher problem.Statistics is the study of the collection, organization, analysis, and interpretation of...