问题如下图：
选项：
A. 
B. 
C. 
解释：
老师，总体感觉数量很抽象，对于完全没有微积分和数学基础的我来说还是很难的，看题有点不知所云的感觉。请问这个题的解题思路是什么呢？这个t公式又是哪来的，我都不知道到哪里看讲义。
NO.PZ2015120204000007 significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statistinot significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statisti B is correct. Because the absolute value of t = -2.3017 is greater th1.96, the correlation coefficient is statistically significant. criticvalue +/-1.96
NO.PZ2015120204000007 您好，这道题我完全不明白，貌似对应的视频没有讲过这部分。麻烦给出具体对应的视频。题干都不是很懂（t test什么的）
NO.PZ2015120204000007 significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statistinot significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statisti B is correct. Because the absolute value of t = -2.3017 is greater th1.96, the correlation coefficient is statistically significant. 既然是双尾检验，那么a也应该是对的呀
NO.PZ2015120204000007 老师这道题如何判断什么是原假设呢，因为题干说的是termine whether the sample correlation between the StellanCPIENG variables is statistically significant.我自己的直接理解原假设就是这两个事情的相关性是significant的，这样对吗，所以T-TEST的值落在拒绝域里，那应该拒绝原假设，即相关性是不significant的，这样的逻辑错在哪了呢？
significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statistinot significant, because the calculatetest statistic ha higher absolute value ththe criticvalue for the test statisti B is correct. Because the absolute value of t = -2.3017 is greater th1.96, the correlation coefficient is statistically significant. t统计量不是双尾检验，拒绝域是小于-critvalue 和大于critvalue -2.3小于1.96就行，答案b是什么意思呢？
