题目 A chi-square test is most appropriate for tests concerning: 选项 A.a single variance. B.differences between two population means with variances assumed to be equal. C.differences between two [...]
题目 Which of the following represents a correct statement about the p-value? 选项 A.The p-value offers less precise information than does the rejection points approach. B.A larger p-value [...]
题目 「huixue_img/importSubject/1564548695368798208.png」「huixue_img/importSubject/1564548695465267200.jpeg」Based on a companies’ information of research and development spending, What is [...]
题目 The power of a hypothesis test is: 选项 A.equivalent to the level of significance. B.the probability of not making a Type II error. C.unchanged by increasing a small sample size. 答案 B [...]
题目 Which parameter equals zero in a normal distribution? 选项 A.Kurtosis B.Skewness C.Standard deviation 答案 B 解析 ： B is correct. A normal distribution has a skewness of zero (it is [...]
题目 A Monte Carlo simulation can be used to: 选项 A.directly provide precise valuations of call options. B.simulate a process from historical records of returns. C.test the sensitivity of a [...]
题目 Which of the following statements is correct with respect to the null hypothesis? 选项 A.It can be stated as “not equal to” provided the alternative hypothesis is stated as “equal [...]
题目 A report on long-term stock returns focused exclusively on all currently publicly traded firms in an industry is most likely susceptible to: 选项 A.look-ahead bias. B.survivorship bias. [...]
题目 All else equal, is specifying a smaller significance level in a hypothesis test likely to increase the probability of a Type I error or Type II error? 选项 A.Type I error (No) or Type II [...]
题目 In the step "stating a decision rule" in testing a hypothesis, which of the following elements must be specified? 选项 A.Critical value B.Power of a test C.Value of a test statistic 答案 A [...]
