王同学2018-10-24 20:53:51

还有这个题目,如果他的believes后面给出的仅仅只是一个置信区间,那么145页那道题目就不应该选择ACCEPT. 这几个题目长得都一样,但是答案选择不一样,烦请老师释疑. Based upon 60 monthly returns, you estimate an actively managed portfolio alpha of 1.28% and a standard error of alpha of 0.1365%. The portfolio manager wants to get due credit for producing positive alpha and believes that the probability of observing such a large alpha by chance is only 1%. Calculate the t-statistic, and state whether you would accept or reject the claim made by the portfolio manager based on the estimated t-value. A t-statistic: 9.377; Conclusion: Accept B t-statistic: 9.377; Conclusion: Reject