The Application of Multiple Regression Analysis Forecast in Economical Forecast: The Demand Forecast of Our Country Industry Lavation Machinery in the Year of 2008 and 2009

摘要

The regression analysis forecast is one quantitative analysis method in the commonly used economical forecast, it is in the observation and analysis of economy development history and in the present situation foundation, according to certain way to establish the mathematical model which reflected its relation, then will calculate and forecast the change of dependent variable according to the change of independent variable in the future, thus will carry on the forecast to the trend of future economy development. This article mainly elaborates the application of multivariate linear regression analysis in the forecast to the development trend of industry lavation machinery, has established the multivariate linear regression model of the forecast to industry lavation machinery development trend. In the discussion to the model, it uses the economic demand function and refines the explanatory variable. According to the massive investigation data, it has carried on the correlated analysis, the regression analysis and the statistical test using the SPSS statistics software. Finally, it utilizes the multivariate linear regression forecast model which is established in this article to carry on the demand forecast to our country industry lavation mechanical profession in the year of 2008 and 2009.