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 type I error associated with testing a hypothesis is equal to:
A. One minus the type II error
B. The confidence level
C. The size of the test
D. The size of the sample
30/08/2021 8 Lượt xem
Câu 2: Which of the following statements is correct concerning the conditions required for OLS to be a usable estimation technique?
A. The model must be linear in the parameters
B. The model must be linear in the variables
C. The model must be linear in the variables and the parameters
D. The model must be linear in the residuals
30/08/2021 7 Lượt xem
Câu 3: 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 4: The value of the Durbin Watson test statistic in a regression with 4 regressors (including the constant term) estimated on 100 observations is 3.6. What might we suggest from this?
A. The residuals are positively autocorrelated
B. The residuals are negatively autocorrelated
C. There is no autocorrelation in the residuals
D. The test statistic has fallen in the intermediate region
30/08/2021 9 Lượt xem
Câu 5: 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 6: 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
30/08/2021 9 Lượt xem

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