问题如下:
Here is a table shows a set of data which is subject to the normal distribution. Peter sets up a null hypothesis--- H0: μ=8.5. Construct a confidence interval at 1% significance level.
选项:
A. (8.3227, 9.5763)
B. (7.6544, 8.5445)
C. (8.3227, 9.4773)
解释:
C is correct.
请问critical value和 confidence interval estimation两侧值是同一个东西吗???如果是,图中题目可以直接根据95%得置信区间两侧值是1.96,这道题目不能根据1%得置信区间两侧值是2.58吗??