please show how you got the calculations

4. The Integrity Mutual Fund has had the following average monthly price for the last 10 months: Average fund price 62.7 63.9 68.0 66.4 67.2 65.8 68.2 69.3 67.2 70.1 a. Month 1 2 3 4 5 C. 6 7 8 9 10 Compute the exponential smoothing forecast with a = .40, and then with a = .70. Compare the accuracy of the forecasts over the first 10 months using MAD. b. Calculate the forecast for month 11 using a simple exponential smoothing model that minimizes MAD. What is the value of a? For month 11, compute the exponential smooth forecast with a = .40 and the adjusted exponentially smooth forecast with a = .4 and = .30