(a) State and discuss the conditions that a weakly stationary process has to satisfy. [5 marks]…

(a) State and discuss the conditions that a weakly stationary process has to satisfy. [5 marks] (b) A plot of a time series Yt , together with its sample ACF and PACF, are displayed in Figures 1-2 below . Explain, with reasons, whether or not you think this is a stationary series and explain the purpose of the two rightmost columns headed ‘Q-Stat’ and ‘Prob’ in the lower panel. [5 marks] (c) Three different models for the above data have been estimated with details presented in Figures 3-8 below (after question 3). Write down the three fitted models and discuss which is the best among the three. Finally, explain with reasons whether you can think of a model specification that might prove preferable to both of those presented. [15 marks]

Attachments:

Save your time - order a paper!

Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won’t have to worry about the quality and deadlines

Order Paper Now

0 replies

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *