市场调查中低计量数据的统计分析

Statistical Analysis of Low-level Classification Data in Market Research

本文对市场调查资料中常见的低计量水平分类数据的检验作了典型的应用与推广.其中从同质性、独立性两方面进行了列联表分析,并通过拉格朗日乘子法求解多元函数极值,讨论了等级评定表中等级分的估计,检验了差异显著性.

This paper extended and developed some statistical testing methods for low-level classification data occurring in market research. Some typical applications are illustrated by practice examples. The problems of similarity and independence of classification data are analyzed by means of the contingency table. By using La-grange multiplier method to solve an optimization of multivariable function, the estimation of the grade in the grading table as well as the significance testing of difference are discussed.