1　计量资料的统计分析方法若数据服从正态分布,即各组样本来自正态总体,且满足方差齐性(即两组或多组的总体方差相等,而非一组数据的标准差是另一组的3倍以上) ,一般优先选择参数检验法,如t检验、u检验、F检验。若不满足以上条件,则应首先进行变量变换。若仍不能使数据服从正 A statistical analysis of measurement data If the data subject to normal distribution, that is, each sample from the normal population, and to meet the homogeneity of variances (ie two or more groups of the overall variance is equal, but not a standard deviation of data is another A group of more than 3 times), the general preference parameter test method, such as t test, u test, F test. If you do not meet the above conditions, you should first change the variables. If you still can not obey the data