NO.PZ2018062016000119
问题如下:
which of the following statement is most likely correct?
选项:
A.95% confidence level is that means we have 95% probably reject H0
B.Test statistic is calculated with the population data
C.Critical value is determined by the significantly level
解释:
C is correct. 95% confidence level is that means we have 95% probably not reject H0,test statistic is calculated with the sample data.
老师上课的时候说critical value是由1、选择t分布还是z分布;2、⍺;3、单尾或双尾
可以就像C选项那样片面地说critical value是由其中某一个因素决定的吗?