数据的统计解释 均值和方差的检验功效

[中文适用范围]： 继承 ISO 2854 并提出 II 类风险的概念，即当原假设为假时不拒绝原假设的概率。 处理平均值与给定值（方差已知或未知）、两个平均值（方差已知或未知）、方差与给定值以及两个方差的比较，并给出这些 II 类风险的曲线集对于给定的替代方案和给定的样本量，并确定为给定的替代方案和给定的 II 类风险值选择的样本量。 [外文原描述]： Follows on from ISO 2854 and puts forward notions of the type II risk, the probability of not rejecting the null hypothesis when it is false. Deals with comparison of a mean with a given value (variance known or unknown), of two means (variance known or unknown), of a variance with a given value, and of two variances, and gives sets of curves for these type II risk for a given alternative and given size of sample and to determine the size of sample to be selected for a given alternative and a given values of type II risk.