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Automobile sales at B.J. Scott Motors, Inc., provided the following 10-year time series: Plot the time series, and comment on the appropriateness of a linear

Automobile sales at B.J. Scott Motors, Inc., provided the following 10-year time series:

Plot the time series, and comment on the appropriateness of a linear trend. What type of functional form would be best for the trend pattern of this time series?

Year 12345 2 Sales 400 390 320 340 270 Year 6 7 8 9 10 Sales 260 300 320 340 370

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