(a) Consider the following time series model. What do you infer about the nature of the time series \"Y1? (b) The following model of household oredit (CRED) on real wages (W) is estimated for the state of New South lol'il'ales (MSW) using quarterly data over a period of 2000 to 2018, tog (feast) = 3.534 + 0.0598WE + n.0494wH Using the following excerpt of the data, what is the predicted household credit in the second quarter of 2018? Time Real Wage index (M0 201801 130.21 201302 130.52 (4 Marks)