Question 1
Which of the following best describes the concept of stationarity in a time series?
Question 2
Which component is not part of classical time series decomposition?
Question 3
Consider the ARIMA(2,1,1) model. What does the '1' in the middle position indicate?
Question 4
Which of the following is a key assumption of the Ljung-Box test for residuals in a time series model?
Question 5
A state-space model includes which two key sets of equations?
