Câu hỏi: Which of the following is NOT correct with regard to the p-value attached to a test statistic?
A. p-values can only be used for two-sided tests
B. It is the marginal significance level where we would be indifferent between rejecting and not rejecting the null hypothesis
C. It is the exact significance level for the test
D. Given the p-value, we can make inferences without referring to statistical tables
Câu 1: What is the relationship, if any, between the normal and t-distributions?
A. A t-distribution with zero degrees of freedom is a normal
B. A t-distribution with one degree of freedom is a normal
C. A t-distribution with infinite degrees of freedom is a normal
D. There is no relationship between the two distributions
30/08/2021 9 Lượt xem
Câu 2: Suppose that we wanted to sum the 2007 returns on ten shares to calculate the return on a portfolio over that year. What method of calculating the individual stock returns would enable us to do this?
A. Simple
B. Continuously compounded
C. Neither approach would allow us to do this validly
D. Either approach could be used and they would both give the same portfolio return
30/08/2021 9 Lượt xem
Câu 3: What result is proved by the Gauss-Markov theorem?
A. That OLS gives unbiased coefficient estimates
B. That OLS gives minimum variance coefficient estimates
C. That OLS gives minimum variance coefficient estimates only among the class of linear unbiased estimators
D. That OLS ensures that the errors are distributed normally
30/08/2021 9 Lượt xem
Câu 4: Which of the following is NOT a good reason for including a disturbance term in a regression equation?
A. It captures omitted determinants of the dependent variable
B. To allow for the non-zero mean of the dependent variable
C. To allow for errors in the measurement of the dependent variable
D. To allow for random influences on the dependent variable
30/08/2021 8 Lượt xem
Câu 5: Which of the following is the correct value for?
A. 2.89
B. 1.30
C. 0.84
D. We cannot determine the value of from the information given in the question
30/08/2021 8 Lượt xem
Câu 6: The numerical score assigned to the credit rating of a bond is best described as what type of number?
A. Continuous
B. Cardinal
C. Ordinal
D. Nominal
30/08/2021 10 Lượt xem

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