问题如下：
8. Which of the following should Liu conclude from these results shown in Exhibit 2?
选项：
A.The average short interest ratio is 5.4975.
B.The estimated slope coefficient is statistically significant at the 0.05 level.
C.The debt ratio explains 30.54% of the variation in the short interest ratio.
解释：
B is correct.
The t-statistic is −2.2219, which is outside of the bounds created by the critical t-values of ± 2.011 for a two-tailed test with a 5% significance level. The 2.011 is the critical t-value for the 5% level of significance (2.5% in one tail) for 48 degrees of freedom.
significant是说不等于0对吗？H0不是=0的假设吗？如果统计量小于-2.011就是落在了左侧，那么应该接受H0啊，那就是等于0的假设，那么不是应该not significant different from 0吗？
