## 回归分析在实际中的应用

Application of Regression Analysis in Practice
Abstract: Regression analysis is a fairly important branch of statistics, in the field of management science, natural science and application is very extensive. This article introduces the regression analysis of basic knowledge and its application in actual. At the same time, this paper combining the two research, combined with the regression analysis method of theoretical concepts and practical application, and pay attention to the qualitative analysis and quantitative analysis, and interpretation of regression analysis in an important application in the practical, convenient for people to live better.
Key words: Regression analysis; linear regression model; regression analysis; statistical variables

1. 预备知识    3
1.1 一元线性回归    3
1.1.1  一元线性回归分析的基本原理和方法    3
1.1.2  决定系数    4
1.2  多元线性回归    4
1.2.1  多元回归模型与回归方程    4
1.2.2  多元回归方程的多重判定系数    6
1.3回归分析的统计检验    6

1.3.1  回归方程的显著性检验    7
1.3.2  回归系数的显著性检验    7
1.3.3  残差分析    8
1.3.4  方差分析    10
2.回归分析的应用    11
2.1一元线性回归的应用    11
2.1.1  实例    11
2.1.2  建立回归模型    11
2.1.3  回归结果与分析    12
2.2多元线性回归的应用    13
2.2.1  实例    13
2.2.2  建立回归模型    13
2.2.3  回归结果与分析    14

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