Two researchers have identical models, data, coefficients and standard error estimates. They test the same hypothesis using a two-sided alternative, but researcher 1 uses a 5% size of test while researcher 2 uses a 10% test. Which one of the following statements is correct?

Consider a standard normally distributed variable, a t-distributed variable with d degrees of freedom, and an F-distributed variable with (1, d) degrees of freedom. Which of the following statements is FALSE?

The EG-ADF test:

Kinh tế lượng là gì?

Hàm hồi quy là:

Bài toán nào sau đây không thuộc về các công việc phân tích kinh tế thông qua mô hình Kinh tế lượng? 

Giả sử với số quan sát n=20, ước lượng mô hình hồi qui:

What would be the consequences for the OLS estimator if autocorrelation is present in a regression model but ignored?

Hàm hồi quy 3 biến là:

The process of marketing involves all of the following EXCEPT:

What would typically be the shape of the news impact curve for a series that exactly followed a GARCH (1,1) process?

Cho hàm hồi quy với ESS=560, RSS = 202 từ đó tìm được R2, kết quả nào đúng trong các kết quả sau:

The interval scale possesses all of the below properties, except:

Trong SPSS Error là:

Consider an increase in the size of the test used to examine a hypothesis from 5% to 10%. Which one of the following would be an implication?

Which of the following is NOT correct with regard to the p-value attached to a test statistic?

If a residual series is negatively autocorrelated, which one of the following is the most likely value of the Durbin Watson statistic?

If a Johansen “max” test for a null hypothesis of 1 cointegrating vectors is applied to a system containing 4 variables is conducted, which eigenvalues would be used in the test?

Thu thập số liệu có mấy dạng:

Hàm hồi quy 3 biến có tính chất:

Hàm hồi quy bội có đặc điểm là: