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Published on Oct 29, 2010
Implements multiple regression with the data analysis toolpak in Excel (Windows). A scatterplot of the residuals vs. time shows a clear time trend. Finally, we calculate the Durbin-Watson statistic with the residuals from the regression output. You could add a time trend of your own and run the regression again by creating a new column for "time" with 1, 2, 3, 4, etc.