方法证据记录
Welch t-test
Welch's t-test is a parametric hypothesis test that compares the means of two independent groups without assuming their variances are equal. It was introduced by B. L. Welch in 1947 as a more robust generalization of Student's two-sample test for situations where the two groups have different spread.
源记录
引文逐字复制自方法源记录。这些引文不代表任何层级的验证。
Welch's t-test (unequal variances)
分类方法记录 · hypothesis-test / statistics
打开完整方法 精选声明
声明已持久化到证据分类账中，每个声明都有自己的评估。
尚无精选声明
当分类账中没有声明时，此视图不会自行创建声明评估。
相关方法
从方法图中生成，显示为机器建议的关系 — 不推断任何证据声明。