问题如下图：
选项：
A. 
B. 
C. 
解释：
请问：
- p-values for F是不是就是significant F?
- t for the slope 是不是等于7.956？
- 这题是做b1是否等于0的假设检验，还是只是问F和t for the slope coefficient的 p-value 数值是否小于0.05。
非常感谢
菲菲_品职助教 · 2018年12月15日
同学你好，
1. 是的，p-values for F就是表中的significance F。
2. slope的t统计量等于7.988哦。
3. 其实回归分析就是想检验一下这个方程的自变量是不是能很好地解释因变量。t检验和F检验对于一元回归是一样的，但对于多元回归来说，t检验是检验每个系数是否显著，F检验是检验方程作为一个整体，即所有的自变量是不是能很好地解释因变量。对于这道题而言，可以等同于检验b1是否等于0.
karencsh · 2018年12月16日
对，7.988....手误。谢谢！
菲菲_品职助教 · 2018年12月16日
加油～
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？？