business analysis tools

• Select and apply three different time series forecasting methods for your data e.g. moving average, exponential smoothing, Holt’s method or any other suitable time series forecasting method e.g. Brown’s method
• For each method, validate the results by finding the error (MSE and MAD) between the actual data and the forecast data for the same time period. THE METHODS OUR GROUP HAS SELECTED ARE MOVING AVARGE, SINGLE EXPONENTIAL SMOOTHING AND DOUBLE EXPONENTIAL SMOOTHING|BROWNS METHOD. I JUST NEED A LITTLE RESEARCH ABOUT THOSE METHODS WITH SOME REFERENCES AND EXAMPLES TO SHOW IN GROUP MEETING AND THEN THEY WILL WRITE WHOLE ASSIGNMENT.