摘要
讨论了假设检验的教学和实践中可能会遇到的三个问题.分析得到三个结论:理论上原假设与备择假设可以任意设定,但实践中常常按照某种规则来设定;假设检验的两个常用的决策准则中,p值准则更精确,为决策者接受原假设提供了一个"风险"的度量;假设检验理论在处理利用样本推断总体的问题中是普遍有效的.
Discussed three questions in the hypothesis testing theory and drew three conclusions. First, null hypothesis and ahernative hypothesis can be made in arbitrary way in theory, but made according to some rules in practice. Second, there are two guidelines of decision-making in hypothesis testing, one is the classical guideline and the other is the p value guideline. The p value guideline is more exactitude than the classical guideline and it provides a measurement about risk of decision-making. Third, the hypothesis testing theory is effective in any problems about using sample data to confer population.
出处
《大学数学》
北大核心
2008年第5期190-193,共4页
College Mathematics
关键词
假设检验
统计假设
决策准则
hypothesis testing
null hypothesis
alternative hypothesis
guideline of decision-making
