一道关于假设检验的题目!跟CFA一级有关!

一道关于假设检验的题目!跟CFA一级有关!
The following data are covered by the next four questions,Q6 Q7,Q8
An analyst regresses the returns from two stocks against the S&P 500 Index,using monthly data,measured as a percentage return,for ten years.The results are shown below.
Security_A Security_B
Intercept 0.6 0.2
Standard Error of Intercept 0.4 0.4
Slope coefficient 1.1 0.7
Standard Error of slope coefficient 0.8 0.15
Q.6
Which of the following statements is TRUE using a 0.05 significance level?
a) Only security A is significantly influenced by S&P 500.
b) Only security B is significantly influenced by S&P 500.
c) Both security A and security B are significantly influenced by S&P 500.
d) Neither security A nor security B is significantly influenced by S&P 500.
Q.7
If S&P unexpectedly rises 10% you would expect:
a) The unexpected return on security A to be 11%
b) The unexpected return on security A to be 17%
c) The unexpected return on security A to be 1.1%
d) The unexpected return on security A to be 1.7%
Q.8
If the expected return on S&P index is 9% the expected return on security B is
a) 1.7%
b) 1.05%
c) 9.9%
d) 6.5%
关于零假设和备择假设的题目一直很困惑!小弟英语水平有限,有的词实在不知道怎么翻译,所以就直接上英文了.能答几题就答几题.还剩最后70分,全献了!
老师给的答案Q6选B,Q7选A,Q8选D.小弟谢过了!
我这个问题是关于经济的,怎么划分到英语里面了?