Question: (a) Choose one beverage category and plot the data. (b) Describe the trend (if any) and discuss possible causes. (c) Would a fitted trend be

(a) Choose one beverage category and plot the data.
(b) Describe the trend (if any) and discuss possible causes.
(c) Would a fitted trend be helpful? Explain.
(d) Fit several trend models. Which is best, and why? If none is satisfactory, explain.
(e) Make forecasts for 2010 and 2015, using a trend model of your choice or a judgment forecast. Discuss. Note: Time increments are 5 years, so use t = 7 and t = 8 for your forecasts.

U.S. Per Capita Annual Consumption of Selected Beverages (gallons) Beverage Milk 1980 1985 1990 199520002005 27.6 17.0 10.5 7.4 28.3 24.3 2.1 2.0 26.7 14.3 12.3 7.8 28.0 23.8 2.4 1.8 21.0 7.0 14.1 8.1 25.2 21.5 2.3 25.7 10.5 15.2 7.8 23.9 8.6 15.3 8.3 27.5 24.7 21.8 22.5 8.1 14.4 8.7 24.9 21.7 2.0 Whole Reduced-fat Fruit juices Alcoholic Beer Wine Distilled spirits 23.9 2.0 1.5 1.2

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