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。
2
This article simplified the concept and the method of interval estimator and the method of defining the sample size.
简述了参数区间估计的概念、方法以及样本容量的确定方法。
3
As for those statistical indicators needed to use sample survey to attain data this article discusses program of drawing sample and constructing estimator simply.