(A)Obtain an Autocorrelation Table for This Series

question 14

Essay

(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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Definitions:

Aldohexose

A simple sugar or monosaccharide containing six carbon atoms and an aldehyde group.

D-(-)-Gulose

A naturally occurring sugar belonging to the family of aldohexoses, known for its optical activity.

Naturally Occurring Sugars

Sugars that are found in natural sources such as fruits, vegetables, and honey, not added during processing or packaging.

D-(-)-Glyceraldehyde

A simple sugar (monosaccharide) that serves as a reference compound for determining the D-L configuration of carbohydrates.