Question: 1 which test is used for the following a omission...
1. Which test is used for the following
a. omission of relevant variables
b. parameter stability
2. when can we introduce dummies in models?
3. What is stationarity and Why is it desired to run a
4. how do you determine the order of Lags in ARMA model?
5. List and explain the Box - Jenkins model adequacy
test for the ARMA/ARIMA