问题如下：
Assuming that there are two variables, X is independent variable, Y is dependent variable, and sample size is 102. The test statistic of the coefficient is 2.44. Given the significance level is 1%, and the corresponding critical value is 2.63, is the test-statistics significant or not ?
选项：
A.significant
Not significant
Cannnot determine
解释：
由于计算出来的test statistics（2.44），小于临界值2.63，所以不能拒绝显著性检验的原假设 （not significantly different from 0）
这道题在没有原假设和备择假设情况下，也就是没给出拒绝域在关键值左边还是右边，为什么可以直接判断出H0 is not significantly different than 0 ???
