Motor Oil Sales
As part of an effort to forecast future sales,the monthly motor oil sales (in thousands of gallons)for the past 10 months are recorded.These data are shown below.
-{Motor Oil Sales Narrative} Draw the time series and the two sets of exponentially smoothed values.Does there appear to be a trend component in the time series?

Question

Motor Oil Sales 
As part of an effort to forecast future sales,the monthly motor oil sales (in thousands of gallons)for the past 10 months are recorded.These data are shown below.  ​ ​
-{Motor Oil Sales Narrative} Draw the time series and the two sets of exponentially smoothed values.Does there appear to be a trend component in the time series?

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The Answer of  Motor Oil Sales 
As part of an effort to forecast future sales,the monthly motor oil sales (in thousands of gallons)for the past 10 months are recorded.These data are shown below.  ​ ​
-{Motor Oil Sales Narrative} Draw the time series and the two sets of exponentially smoothed values.Does there appear to be a trend component in the time series?