上次小編給你說了財報CFA考試題，今天我們一起看看CFA一級中經(jīng)濟學的知識考試題，畢竟CFA一級考試10個科目的知識都要考的哦！
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.
【B】
[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.
【A】
[Solution] If the p-value is less than the specified level of significance, the null hypothesis is rejected.
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