Problem

(a) Plot both Swiss watch time series on the same graph. (b) Describe the trend (if any) a...

(a) Plot both Swiss watch time series on the same graph. (b) Describe the trend (if any) and discuss possible causes. (c) Fit an exponential trend to each time series. (d) Interpret each fitted trend carefully. What conclusion do you draw? (e) Make forecasts for 2003. using the linear trend model. Do you feel confident in your forecasts? Explain. Swiss

Swiss Watch Exports (thousands of units), 1998-2003
Year	Mechanical	Electronic
1998	2,558	29,678
1999	2,526	28,766
2000	2,549	27,313
2001	2,580	23,811
2002	2,722	24,107
2003	2,718	21,864

Source: Fédération de L’Industrie Horlogère Suisse, Swiss Watch Exports, www.fhs.ch.

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