经济学得考试题上次也练习了！但是每天都是学习练习的，这次CFA考试题学习也是CFA一级经济学的科目，那这两道考试题考察的是什么知识呢？
1. The confidence interval is most likely to be:
A. wider as the point estimate increases.
B. narrower as the reliability factor decreases.
C. wider as the sample size increases.
[Solution] A confidence interval for a parameter = Point estimate ± Reliability factor × Standard error. For example, the reliability factors for confidence intervals based on the standard normal distribution are 1.65 for 90% confidence intervals and 1.96 for 95% confidence intervals. For a given point estimate and standard error, the confidence interval will be narrower with a lower reliability factor.
2. The null hypothesis is most likely to be rejected when the p-value of the test statistic:
A. falls below a specified level of significance.
B. is negative.
C. exceeds a specified level of significance.
[Solution] If the p-value is less than the specified level of significance, the null hypothesis is rejected.
CFA知识学习是长期的事情，但是坚持CFA考试是每一位学员应该做到的。通过CFA考试掌握更多的金融知识，让自己变成富有的人。更多CFA备考知识、资料领取及学习答疑的事情，学员可以在线咨询老师或者添加老师微信。
