Question: Question 4: The file TS1 contains data on six time-series, u, v, w, x, y and z. (a) Using the ac and pac commands, identify

Question 4: The file TS1 contains data on six time-series, u, v, w, x, y and z. (a) Using the ac and pac commands, identify the process for each of the six series. (b) Using the ARIMA command, obtain estimates of the parameters of each process. Question 4: The file TS1 contains data on six time-series, u, v, w, x, y and z. (a) Using the ac and pac commands, identify the process for each of the six series. (b) Using the ARIMA command, obtain estimates of the parameters of each process

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