基于线性回归的甘南藏族自治州产业结构模型分析

Analysis of the Industrial Structure Model of Gannan Tibetan AutonomousPrefecture Based on Linear Regression

基于1978—2021年甘南生产总值的相关数据,运用SPSS软件对第一、二、三产业增加值做了描述性、线性相关、二元线性回归三个层次的统计分析,建立了产业结构的线性回归模型.数据分析说明,三个数据变量存在高度的线性相关性,44年中第三产业增加值从最低跃升至最高,并且显示出与第一、二产业的紧密关联性.由此提出存在第一、二产业确定第三产业的回归方程假设,并通过回归方程及回归系数的显著性检验表明回归方程显著,样本数据残差分布服从正态分布.

Based on the relevant data of Gannan's GDP from 1978 to 2021,SPSS software was used to make descriptive,linear and binary linear regression statistical analysis on the added value of the first,second and third industries,and a linear regression model of industrial s tructure was established.The results show that the three data variables have a high degree of linear correlation.In 44 years,the added value of the tertiary industry has risen linearly from the lowest to the highest,and it shows a close correlation with the primary and sec-ondary industries.Therefore,the regression equation hypothesis that the tertiary industry is determined by the primary and secondary in-dustries is proposed,and the significance test of the regression equation and the regression coefficients shows that the regression equation is significant,and the residual distribution of the sample data follows the normal distribution.