老师 想问一下模考1Q39 （1）百题讲解老师说：C选项如果改成“Nfirms is a useful measure of potential barriers to entry” 则正确；但是，基础课单老师说这两种方法都没有考虑新竞争者，这是不是冲突了？如果不是冲突，麻烦老师分别解释一下这两位老师的观点（2）能否麻烦老师分别总结一下HHI和Nfirms的优缺点？ 谢谢

这道题有点疑问，没有算出正确答案。 Basic EPS =32M/4.5M=7.11% 算Diluted EPS 时，算出股票回购的股数为0.075M。 Diluted EPS=32M+15M*12%*(1-30%)/4.5M+0.05M+0.075M=7.19% 然后我认为应该选7.11%但是无选项，答案选的是A。请老师确认我的计算过程哪里有错？

老师，想问下这题为啥不选C？

老师好，这是咱们金程给的201712模考里的题目，也是咱们百题里的一道题目，但答案不一样。我认为是下面的模考题目答案（B）错了，应选C。不知是否是这样。

属于 NCA 那应该不影响流动性吧

An analyst wants to test whether the samples selecting from a population are random, he should choice: A B C 为什么用非参数检验呢？不符合老师课上说的3点

A hypothesis test has a p-value of 1.96%. An analyst should reject the null hypothesis at a significance level of: A 6%, but not at a significance level of 4%. B 3%, but not at a significance level of 1%. C 4%, but not at a significance level of 2%. 这题怎么想？

老师好 请问corporate fiannce视频更新在哪里了 我的目录里面一直没有

Investor believes that the mean price of houses in the area is greater than $135,000. A random sample of 25 houses in the area has a mean price of $139,750. The population standard deviation is $24,000. At a 1% level of significance, we should: A Reject the null hypothesis. B Fail to reject the null hypothesis. C Neither rejects nor fails to reject the null hypothesis. 这题答案是否错误？1%对应的应该是2.58吧？

off-balance sheet financing，在算debt-to-total assets时，为什么要调整debt到total assets呢？