Seasonal pattern to the data

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Reference no: EM132351305

Coke for your data.

  • Plot the data on a scatter or line chart. Does there appear to be a seasonal pattern to the data?
  • Do a simple regression without seasonality.
  • Do a regression calculating the seasonal factors using the dummy variable method. (Remember you need only use three dummy variables as the fourth is implicit in the data itself.)
  • Which model seems to give the better fit.

Reference no: EM132351305

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