(10 points) For the following three time series, suggest appropriate ARMA model orders, i.e., suggest values for and selection. in the ARMA(p, q) model, based on its sample ACF and PACF plots. Explain your PACH 5- 5- go- 4- 2. T 9. 0 100 200 J.L.I 20 Series 1 Time ACF (Series 1) LAG PACF (Series 1) 300 400 500 30 40 50 10 20 30 50 LAG 100 200 20 Series 2 Time ACF (Series 2) LAG PACF (Series 2) 30 300 400 500 50 0 10 20 30 40 50 LAG FACE 2. 30- 2 8- 10 100 200 20 Series 3 Time ACF (Series 3) LAG PACF (Series 3) 300 400 500 + 30 1 L 40 50 10 20 30 40 50 LAG