而如果不假设数据本身是正态分布，且方差未知，那么就只能使用大样本理论（large sample theory）中的一些定理（中心极限定理和Slutsky定理），来证明，这个统计量渐进（asymptotically）服从正态分布。
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Large-Sample Theory&Limit theory 大样本理论与极限理论
large sample and test theory [统计] 大样本及检验理论
large-sample distribution theory 大样本分布理论
theory large sample 释义大样本理论
The large sample theory of the proposed test is developed and the finite sample properties of the test are studied through simulations.
检验的大样本理论被给出。我们还通过数值模拟研究了检验方法的有限样本性质。
This graduate level mathematics course covers decision theory, estimation, confidence intervals, and hypothesis testing. The course also introduces students to large sample theory.
这们研究所程度的数学课程包含了决策理论、估计、信赖区间及假设检定，同时，也会为各位同学介绍大样本理论。
Some statistical test methods on "fat tail" distribution of time series are obtained by using properties of extreme value theory and extreme index estimator under large sample.
使用极值理论和极值指数估计量的性质，在大样本的情况下得到序列分布“肥尾”现象的检验方法。
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