Victoriazhang · 2021年09月08日
NO.PZ2018062016000129
问题如下：
Which of the following items describes the probability of rejecting the null when it is false?
选项：
A.level of significance.
B.power of a test.
C.p-value.
解释：
B is correct. Whereas the significance level of a test is the probability of incorrectly rejecting the null, the power of a test is the probability of correctly rejecting the null.
三类错误的定义还可以仔细讲下么，这个知识点还是不是很清楚，希望统一讲一下
星星_品职助教 · 2021年09月08日
同学你好，
这个问题太泛了，包括了基础班两小节课的内容，细节太多，没法在有问必答上打字“统一讲一下”。所以我建议这样：
①两类错误主要是在基础班R11的P-value Method 和Type I Error and Type II Error这两个视频中讲的，后者更重要。这两个视频一共23分钟.可以重复听一下。
这是最系统的学习方法。如果视频中有问题，标明一个具体的时间点继续上来提问。这样可以针对问题讲解。
②通过题目进行提问（类似你在另一个问题下的提问）。但一定要细化问题。对于太广泛问题的回答是没有针对性的。
NO.PZ2018062016000129问题如下Whiof the following items scribes the probability of rejecting the null when it is false?A.level of significance. B.power of a test. C.p-value.B is correct. Wherethe significanlevel of a test is the probability of incorrectly rejecting the null, the power of a test is the probability of correctly rejecting the null.老师，我想问问这里所说的rejecting the null hypothesis when it is false是什么意思，我有点被搞混了。感觉既不是T 1也不是T 2 error。
NO.PZ2018062016000129 问题如下 Whiof the following items scribes the probability of rejecting the null when it is false? A.level of significance. B.power of a test. C.p-value. B is correct. Wherethe significanlevel of a test is the probability of incorrectly rejecting the null, the power of a test is the probability of correctly rejecting the null. 由于Type II error是当原假设为假的时候，没有拒绝原假设的概率。所以从描述上可以看出，Type II error+ power of test=1。还是不太理解这句
NO.PZ2018062016000129 power of a test. p-value. B is correct. Wherethe significanlevel of a test is the probability of incorrectly rejecting the null, the power of a test is the probability of correctly rejecting the null.没看明白，这个是综合考点么？
请问这题题干什么意思？Bpower of a test是什么意思？
