题目 An estimator with an expected value equal to the parameter that it is intended to estimate is described as: 选项 A.efficient. B.unbiased. C.consistent. 答案 B 解析 ： B is correct. An [...]
题目 Which of the following statements regarding a one-tailed hypothesis test is correct? 选项 A.The rejection region increases in size as the level of significance becomes smaller. B.A [...]
题目 Which of the following events can be represented as a Bernoulli trial? 选项 A.The flip of a coin B.The closing price of a stock C.The picking of a random integer between 1 and 10 答案 A [...]
题目 A client holding a ￡2,000,000 portfolio wants to withdraw ￡90,000 in one year without invading the principal. According to Roy’s safety-first criterion, which of the following portfolio [...]
题目 An increase in sample size is most likely to result in a: 选项 A.wider confidence interval. B.decrease in the standard error of the sample mean. C.lower likelihood of sampling from more than [...]
题目 A portfolio has an expected return of 7% with a standard deviation of 13%. For an investor with a minimum annual return target of 4%, the probability that the portfolio return will fail to [...]
题目 An analyst is investigating the relationship between the annual growth in consumer spending (CONS) in a country and the annual growth in the country’s GDP (GGDP). The analyst estimates the [...]
题目 The value of a test statistic is best described as the basis for deciding whether to: 选项 A.reject the null hypothesis. B.accept the null hypothesis. C.reject the alternative hypothesis. [...]
题目 If the probability that a portfolio outperforms its benchmark in any quarter is 0.75, the probability that the portfolio outperforms its benchmark in three or fewer quarters over the course of [...]
题目 The level of significance of a hypothesis test is best used to: 选项 A.calculate the test statistic. B.define the test’s rejection points. C.specify the probability of a Type II error. [...]
