统计问题(31):
以下哪个选项最能描述 II 类错误?
Which of the options below best describes a type II error?
a) The probability that the null hypothesis is true
b) The probability that the null hypothesis is false
c) It is made if the null hypothesis is accepted when it is false
d) It is made if the null hypothesis is rejected when it is true
e) None of the above
The null hypothesis is either true or false. Statistics can be used to calculate the probability of seeing certain results if the null hypothesis were true, but this does not alter whether it is true or not.
Answer d defines a false positive result or type I error.
原假设只有真或假两种可能(是确切的不能估计)。 如果原假设为真,统计数据可用于计算看到某些结果的概率,但这不会改变它是否为真。
答案 d 定义了误报结果或 I 类错误。
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