Time Series Analysis and Forecasting

Time Series Analysis and Forecasting”: Exercises 20.47, 20.48, 20.49, 20.50, and 20.51 

Gradign Criteria
Plotted the time series accurately. 
Discussed why exponential smoothing is not recommended as a forecasting tool in situation. 
Used regression analysis to determine the trend line. 
Determined the seasonal indexes accurately. 
Accurately forecasted revenues for the next four quarters.