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Review for Exam III–Chapter 8 and Chapter 9
Chapter 8
1. Autocorrelation
· Consequence
· Test for autocorrelation: Durbin Watson Test
· Solution for autocorrelation
2. Regression with differences
· Regression estimation
· Checking on autocorrelation of residuals
· Forecast
3. Regression with seasonal data using dummy variables
Chapter 9
1. Components of ARIMA model: AR, I, and MA
· Model identification
· Time series plot
· Autocorrelation graph
· Partial autocorrelation graph
· Model estimation
· Model checking
· Mean Squares (MS)
· Ljung-Box Q statistics, Chi-squared test
· Checking residuals
· forecast
3. Fitting ARIMA model with seasonal data