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.
检验统计量计算的公式,公式中分子不是用样本均值减去整体均值嘛,那是不是有用到整体的参数么