问题如下:
Which of the following statement about two-sided confidence interval is most correct if the confidence interval become narrower?
选项:
A.
the degree of confidence is smaller.
B.
the degree of confidence is larger.
C.
sampling size is smaller.
解释:
A is correct.
If the degree of confidence is smaller, the confidence interval become narrower.
老师,还是没懂置信区间和置信度是什么关系