please help me with this multi part question please give an accurate graph and a chart I will upvote !!! !

Refer to the gasoline sales time series data in Table below to answer the following (Copy the file to Excel when done submit here) 1. Compute the three-week, four-week and five-week moving averages for the time series. 2. Compute the MSE for Three-week, the four-week and fiveweek moving average forecasts. (Look over the PowerPoint) 3. Create a new column to show the trend line (y=mx+b) for the table below 4. What appears to be the best number of weeks of past data (three, four, or five) to use in the moving average computation? 5. Plot gasoline sales time series after obtaining the contract with the Vermont state police 6. Plot gasoline sales time series and three-week moving average Forecasts 7. Plot gasoline sales time series and add the trend line to graph GASOLINE SALES TIME SERIES AFTER OBTAINING THE CONTRACT WITH THE VERMONT STATE POLICE