NO.PZ201709270100000303
问题如下：
3. Based on Exhibit 1, which independent variables in Varden’s model are significant at the 0.05 level?
选项： ESG only
Tenure only
C.Neither ESG nor tenure
解释：
B is correct. The t-statistic for tenure is 2.308, which is significant at the 0.027 level. The t-statistic for ESG is 1.201, with a p-value of 0.238. This result is not significant at the 0.05 level.
请问一下，（1)什么时候可以直接用给定的α和P值进行比较呢？(2)什么时候双尾也不用除以2？谢谢老师
