Solve the below:
Q: Following are time-series data for nine time periods. Use exponential smoothing with constants of .3 and .7 to forecast time periods 3 through 9. Let the value for time period 1 be the forecast for time period
Compute additional forecasts for time periods 4 through 9 using a 3-month moving average. Compute the errors for the forecasts and discuss the size of errors under each method.
Time Period Value Time Period Value
1 9.4 6 11.0
2 8.2 7 10.3
3 7.9 8 9.5
4 9.0 9 9.1
5 9.8