假设检验的错误分析

假设检验中有两种不同检验方法,即原假设和备择假设,而应用不同的方法经常会得到不同的结论.较好的结果是在第一类错误相同的条件下,犯第二类错误小的方法得到的结论.指出在比较第二类错误的大小过程中常见的错误及其产生的原因,并给出在实际应用中选取原假设的原则.

Analysis on the reason of hypothesis test

There are two different inspection methods in hypothesis test. They are the primary hypothesis and alternative hypothesis. We often get different conclusions in the use of different methods. The good result is that the second type of error is smaller when the first type of error is in the same conditions. The author points out the common mistakes and the cause of the error in comparison of the second type of error. Meanwhile the author also points out the principle of choosing primary hypothesis in the practical application.