NO.PZ2018101001000006
问题如下:
After doing the regression analysis, if the p-value for both intercept and slope coefficient are smaller than 0.1, and also the Significance F is smaller than 0.1, which of the following conclusions is most likely correct?
选项:
A.The relationship between independent variable and dependent variable is not significant at 0.1 level.
B.The relationship between independent variable and dependent variable is significant at 0.05 level.
C.The relationship between independent variable and dependent variable is significant at 0.1 level.
解释:
C is correct.
考点: Regression Coefficient: F-test.
解析: 由题干可知P-value和Significance F均小于α(0,1),说明自变量和因变量之间的关系在α =10%时是显著的,选择C选项。
老师好,
1.关于“the p-value for both intercept and slope coefficient are smaller than 0.1”这句话有用吗?其实这道题是不是就是用‘Significance F’和‘α’相比就行了呢?
2.我知道P-value越小越拒绝,如果<0.001,就直接拒绝行了。可是p-value到底是个啥呢?
3.本身α=0.1在我看来0.1就是代表的尾巴的面积,而P-value不是对应的是横轴上的某个点吗?我是不是理解错了?
4.我记得P-value是可以拒绝原假设的最小值,所以题中给出p-value<0.1而α=0.1,我们就得到α>p-value?所以要拒绝原假设,即二者关系显著这样吗?
谢谢老师