1.Given Table has data pertaining to the actual sales for 10 months in the past. Calculate forecasts for months 2 to 10 using an exponential smoothing forecast with an alpha of 0.3. Assume a forecast of 109 for month 1. Also compute the forecast accuracy using MSE, MAD and MAPE.

Month

Actual Sales

1

120

2

114

3

130

4

124

5

97

6

95

7

100

8

110

9

109

10

123