问题如下:
Using information from Exhibit 2, Vasileva should compute the 95% prediction interval for Amtex share return for month 37 to be:
选项:
A.–0.0882 to 0.1025.
–0.0835 to 0.1072.
0.0027 to 0.0116.
解释:
A is correct.
为什么不用df=35的2.03要用df=34的 2.032 样本不是变成37个了吗?