Given below are the ACFS and PACFS from 3 stationary time series. Based on your examination of the ACFS and PACFS, propose a time series model for a. Situation 1 b. Situation 2 c. Situation 3 Give a reason to support your answer in each case. If an appropriate model is not evident from these plots in any of the 3 sitations, explain carefully why you believe this is so. Situation 1 Lag AutoCorr -.8-.6-4-.2 0.2 .4 .6 .8 Ljung-Box Q p-Value Partial -.8-.6-4-2 0 .2 4 .6 .8 Lag 0 1.0000 1 0.7483 2 -0.2697 3 -0.4206 1.0000 0.7483 25.7951 Situation 2 Lag AutoCorr -.8-.6-4-2 0.2 4.6 .8 Ljung-Box Q p-Value Lag Partial -8-.6-4-20 .2 4.6 .8 1.0000 0 1.0000 0.7435 18.8516 Situation 3 Time Series Basic Diagnostics Lag AutoCorr -.8-.6-4-.2 0 .2 .4 .6 .8 Ljung-Box Q p-Value Lag Partial -.8-.6-4-.2 0 .2 4 .6 .8 1.0000 1.0000 -0.4656 109.056