参数区间估计和样本容量确定在市场调查中的应用

Interval Estimator and Sample Size Defining in the Application of Marketing Survey

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。在此基础上 ,给出市场调查中比率的区间估计。

This article simplified the concept and the method of interval estimator and the method of defining the sample size. On the basis of the above mentioned content, two examples are given for appling these methods.