Câu hỏi: Which of the following is a correct interpretation of a “95% confidence interval” for a regression parameter?
A. We are 95% sure that the interval contains the true value of the parameter
B. We are 95% sure that our estimate of the coefficient is correct
C. We are 95% sure that the interval contains our estimate of the coefficient
D. In repeated samples, we would derive the same estimate for the coefficient 95% of the time
Câu 1: 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
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: Which of the following is the most accurate definition of the term “the OLS estimator”?
A. It comprises the numerical values obtained from OLS estimation
B. It is a formula that, when applied to the data, will yield the parameter estimates
C. It is equivalent to the term “the OLS estimate”
D. It is a collection of all of the data used to estimate a linear regression model.
30/08/2021 8 Lượt xem
Câu 4: What is the relationship, if any, between t-distributed and F-distributed random variables?
A. A t-variate with z degrees of freedom is also an F(1, z)
B. The square of a t-variate with z degrees of freedom is also an F(1, z)
C. A t-variate with z degrees of freedom is also an F(z, 1)
D. There is no relationship between the two distributions
30/08/2021 8 Lượt xem
Câu 5: 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 6: 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

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