# Question

The data file Fargo Electronics Earnings shows quarterly sales of a corporation over a period of 6 years.

a. Draw a time plot of this series and discuss its features.

b. Use the seasonal-index method to seasonally adjust this series. Graph the seasonally adjusted series and discuss its features.

a. Draw a time plot of this series and discuss its features.

b. Use the seasonal-index method to seasonally adjust this series. Graph the seasonally adjusted series and discuss its features.

## Answer to relevant Questions

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