# a. An autoregressive model is given by: Yt = 20.58 + 0.046 yt-1 + 0.01Yt-2 where Y, = sales of

## Question:

Yt = 20.58 + 0.046 yt-1 + 0.01Yt-2

where Y, = sales of a product. Explain the meaning of the terms in this autoregressive model.

b. Write the expressions for the following models:

AR(3) MA(4)

AR(4) ARMA(1,2)

MA(3) ARIMA(2, 1,2)

## This problem has been solved!

Do you need an answer to a question different from the above? Ask your question!

## Step by Step Answer:

**Related Book For**

## Business Forecasting with Forecast X

**ISBN:** 978-0073373645

6th edition

**Authors:** Holton wilson, barry keating, john solutions inc

**View Solution**

Create a free account to access the answer

**Cannot find your solution?**

Post a FREE question now and get an answer within minutes.
* Average response time.