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方差分析是重要的数理统计方法。本文简介一种用计算器进行方差分析的方法——实际上是用样本平均数的方差来研究方差分析的方法.由于本法不需要进行繁琐的离差平方和分解与自由度分解,就能直接计算出各种方差,特别是单因素方差分析,还可以直接算出统计量 F_A;由于方差分析过后一般都要进行多重比较,也就是说要计算各水平的平均数,而本法又是在计算平均数和标准差基础上的进一步运算,因此较传统算法要简便得多.推广使用本法对方差分析的教与学及应
Variance analysis is an important mathematical statistical method. This article describes an analysis of variance using a calculator method - in fact, the variance of the sample mean to study the variance analysis method.Because this method does not require tedious and the decomposition of the square of the degree of freedom decomposition, we can Direct calculation of all kinds of variance, especially single-factor analysis of variance, but also can directly calculate the statistic F_A; as a result of the analysis of variance usually after multiple comparisons, that is to calculate the average of each level, and this law is in Calculate the average and standard deviation based on further computing, so much more convenient than the traditional algorithm much.To promote the use of this method of analysis of variance teaching and learning and should