Question 2 The below output shows the results of an ARIMA model which was fitted to a time-series data of Japan's GDP, and an excerpt of the data. Based on the below model and information: a) Explain what the time series is likely to look like (i.e., cyclical, seasonal, with a trend). (2 marks). b) Explain what is the predicted GDP value for Q4, 2021? (4 marks). Quarter, Year GDP (in trillions of dollars) Q1, 2021 5.5 Q2, 2021 6.5 Q3, 2021 7.0 ## Series: GDP ## Model: ARIMA(1,1,0) ## Coefficients: ## ar1 constant #41 0.5 3