1. For the data given below find the forecast for year 10 using
   1. Nave method
   2. Moving averages with n=2
   3. Weighted moving averages with n=2 and the weight the most recent data equal 3 and the previous year weight equal 1.
   4. Exponential smoothing with a = 0.7
   5. Comparing the weighted average and moving average methods in b and c which method yields better results based on MAD?
   6. Use regression analysis to find the forecast for year 10.

Period	Actual	Forecast
1	13
2	25
3	35
4	46
5	66
6	71
7	80
8	88
9	95
10	?