NO.PZ201512020300000106
问题如下：
Kenneth McCoin, CFA, is a fairly tough interviewer. Last year, he handed each job applicant a sheet of paper with the information in the following table, and he then asked several questions about regression analysis. Some of McCoin’s questions, along with a sample of the answers he received to each, are given below. McCoin told the applicants that the independent variable is the ratio of net income to sales for restaurants with a market cap of more than $100 million and the dependent variable is the ratio of cash flow from operations to sales for those restaurants. Which of the choices provided is the best answer to each of McCoin’s questions?
6. Is the relationship between the ratio of cash flow to operations and the ratio of net income to sales significant at the 5 percent level?
选项：
A.No, because the R-squared is greater than 0.05.
B.No, because the p-values of the intercept and slope are less than 0.05.
C.Yes, because the p-values for F and t for the slope coefficient are less than 0.05.
解释：
C is correct.
The p-value reflects the strength of the relationship between the two variables. In this case the p-value is less than 0.05, and thus the regression of the ratio of cash flow fromoperations to sales on the ratio of net income to sales is significant at the 5 percent level.
请问老师，此题中anova 表里significance F就是F检验的P-value 是吗；另外我们说p-value小于a时拒绝原假设，此题的a是不是就是0.05呢
