(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 the next 3 years, using the linear trend model. Why might 2009 have been unusual? Explain.

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Swiss Watch Exports (thousands of units), 2005-2010 ear Mechanical Electronic 2005 2006 2007 2008 2009 2010 3,368 3.757 4,213 4,316 3,737 4,938 20,996 21,109 21,679 21,784 17,956 21,177