问题如下图：
选项：
A. 
B. 
C. 
解释：
这题都不需要你直接计算t检验统计量么 ？ 如果用Pvalue可以同样适用在多元么？怎么判断可以用P直接替代还是需要计算？
NO.PZ2015120204000006 No, because the p-values of the intercept anslope are less th0.05. Yes, because the p-values for F ant for the slope coefficient are less th0.05. C is correct. The p-value reflects the strength of the relationship between the two variables. In this case the p-value is less th0.05, anthus the regression of the ratio of cash flow fromoperations to sales on the ratio of net income to sales is significant the 5 percent level. 解析只说了p小于0.05
NO.PZ2015120204000006 The p-value reflects the strength of the relationship between the two variables. 这句话不理解。针对题目最后的问题，为什么是看p来判断呢
No, because the p-values of the intercept anslope are less th0.05. Yes, because the p-values for F ant for the slope coefficient are less th0.05. C is correct. The p-value reflects the strength of the relationship between the two variables. In this case the p-value is less th0.05, anthus the regression of the ratio of cash flow fromoperations to sales on the ratio of net income to sales is significant the 5 percent level. 这道题的假设检验中，原假设应该是什么？
No, because the p-values of the intercept anslope are less th0.05. Yes, because the p-values for F ant for the slope coefficient are less th0.05. C is correct. The p-value reflects the strength of the relationship between the two variables. In this case the p-value is less th0.05, anthus the regression of the ratio of cash flow fromoperations to sales on the ratio of net income to sales is significant the 5 percent level. 老师，我感觉我现在很confuse一点是，F 不是64吗，就是大于1.96，所以拒绝，所以significant，但是好像没有。请教老师，这个到底是谁跟谁比啊
问两个问题。1,B为什么错了？？2，这道题目不是一元回归吗，为什么C还要用F检验，不应该就T检验就够了吗？？
