46 a first order autoregressive model is generated from the white noise series wt using the generating equations it xt 1 wt where for dl 1 is a parameter and the wt are independent random va 04273

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ARMA model

SOLVED: Sarah wants to model a univariate time series using an autoregressive moving average (ARMA) model.A) Show that the following model, where et is white noise, is over-parameterized and write out the appropriately simplified model. [4 points]xt = 0.8xt-1 0.128εt-2 εt 0.2εt-1B) Given a large enough set of data on xt, what features would you expect to observe in the autocorrelation function? [2 points]C) Given a large enough set of data on xt, what features would you expect to observ

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