【摘要】 对于参数性假设检验问题,如何正确建立原假设和备择假设并选择合适检验统计量是学生学习过程中的两个难点问题。针对这两个问题,从典型案例展开讨论,分析了假设检验的立场问题并给出原假设和备择假设的建立原则;分析了成对数据与成组数据的差异,分析清楚条件后再给出正确的检验统计量。更多还原

【Abstract】 For parametric hypothesis testing, how to establish the null hypothesis, alternative hypothesis and choose the appropriate test statistics correctly are two difficult problems in learning process. To solve these problems, firstly two typical cases were discussed. Then the standpoint of hypothesis testing and the establishment principles of the null hypothesis, alternative hypothesis were given. In the end, the differences between the paired data and the group data were analyzed and the correct test statistics were obtained.更多还原