关键词: 最小二乘原理, 再裂区设计, 二次回归分析, 显著性检验, 回归分析

Abstract: Based on the principle of least squares, a quadratic regression analysis method of the results of resplit-plot design with three experimental factors is presented, which involves the establishment of the quadratic regression equation of an experimental target on three factors and signficance tests.This method sets up a new way to analyze the results of resplitplot experiment.With this method, some new and important imformation of the experiment can be abtained so it increases the using efficiency of resplit-plot experiment.The method is illustrated by a numerical example.

Key words: PRINCIPLE OF LEAST SQUARES, RESPLIT-PLOT DESIGN, QUADRATIC REGRESSION ANALYSIS, SIGNIFICANCE TEST, REGRESSION ANALYSIS