问题如下图:
选项:
A.
B.
C.
解释:
这题的原假设是“the slope and intercept coefficients from Batten's regression are significant at 0.05 level”吗
NO.PZ201512020300000206 请一下b,题目说“in the month after the CPIENG clines” 所以指的是在自变量下降的后一年return的变化,由于这一年是cline,所以return是positive,考虑到均值复归,下一年应该是negative,为什么不能这样理解?
NO.PZ201512020300000206 In the month after the CPIENG clines, Stellar’s common stois expecteto exhibit a positive return. Viewein combination, the slope anintercept coefficients from Batten’s regression are not statistically significant the 0.05 level. C is correct. C is the correresponse, because it is a false statement. The slope anintercept are both statistically significant.这一道题怎么快速的判断是拒绝原假设还是无法拒绝原假设 每一次都绕晕
NO.PZ201512020300000206
老师问下 这道题b为什么不选 感觉是错的 他前面的系数是负数 那不是应该negative吗
In the month after the CPIENG clines, Stellar’s common stois expecteto exhibit a positive return. Viewein combination, the slope anintercept coefficients from Batten’s regression are not statistically significant the 0.05 level. C is correct. C is the correresponse, because it is a false statement. The slope anintercept are both statistically significant. 请每一个具体一下,都不理解