(A)Obtain an autocorrelation table for this series.
(B)Use the results of (A)to specify one or more "promising" autoregression models.Estimate each model with the available data.Which model provides the best fit to the given data?
(C)Use the best autoregression model from (B)to produce a forecast of the CCI in 2007.Also,provide a measure of the likely forecast error.
(D)Use the moving average method with a carefully chosen span to forecast this time series in 2007 and 2008.Explain your choice of the span.
(E)Between the best autoregression model and the best moving average model,which is best? Explain your answer.

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The Answer of (A)Obtain an autocorrelation table for this series.
(B)Use the results of (A)to specify one or more "promising" autoregression models.Estimate each model with the available data.Which model provides the best fit to the given data?
(C)Use the best autoregression model from (B)to produce a forecast of the CCI in 2007.Also,provide a measure of the likely forecast error.
(D)Use the moving average method with a carefully chosen span to forecast this time series in 2007 and 2008.Explain your choice of the span.
(E)Between the best autoregression model and the best moving average model,which is best? Explain your answer.

(A)Obtain an Autocorrelation Table for This Series