CAJ | 학술논문

在对正态总体的未知参数进行假设检验时,原假设与备择假设的确定是十分重要的.原假设与备择假设的选取并不是根据问题确定,而常常是需根据被检验的参数的估计量做一下预判,从而可以尽量保证检验结果的准确性.分析犯两类错误的概率时,因为通常采用的是显著性检验,因此,只能控制犯第一类错误的概率,而根据检验方法的不同,犯第二类错误的概率只能尽量的小.文中对原假设与备择假设的确定及两类错误的初步探讨学习有关假设检验的问题.
재대정태총체적미지삼수진행가설검험시,원가설여비택가설적학정시십분중요적.원가설여비택가설적선취병불시근거문제학정,이상상시수근거피검험적삼수적고계량주일하예판,종이가이진량보증검험결과적준학성.분석범량류착오적개솔시,인위통상채용적시현저성검험,인차,지능공제범제일류착오적개솔,이근거검험방법적불동,범제이류착오적개솔지능진량적소.문중대원가설여비택가설적학정급량류착오적초보탐토학습유관가설검험적문제.
It is important for the determination of the null hypothesis and the alternative hypothesis to hypothesis testing of the unknown parameters of the normal population.the selecting of the null hypothesis and the alternative hypothesis is not determined by the specific problem ,but often determined by the estimated value of the tested parameters to ensure the accuracy of the test results. Usually we use a significant test when we analysis guilty of two types of error probability, so we can only control the type one error probability. According to the different test methods, committing Type II error probability can only be as small as possible. This paper talked about the determination of the null hypothesis and alternative hypothesis and discussed two types of errors to learn about hypothesis testing problem.