Questions 3,4,5 are all together I attached all three problems to this question but please give me the solutions from excel because the rounding is always different than the calculator. Thanks

(For Questions 3,4,5) Given the following data, use exponential smoothing with a=0.1 and a=0.6 to generate forecasts for periods 2 through 6. Use MAD and MSE to decide which of the two models produce a better forecast. (Assume the forecast for Period 1 is 17) Period Actual Forecast 1 14 17 2 16 3 16 4 5 11 12 17 6 What is the forecast for Period 6 when you use a=0.6? (Express it to 2 decimal places) Answer: What is the value of Mean Absolute Deviation (MAD) when a=0.6? Calculate to 3 decimal places. (Use all forecasted values from Period 1 to Period 6.) Answer: Which method produces a better forecast? (Use all forecasted values from Period 1 to Period 6.) Select one: O A. a=0.6 produces a better forecast measured both by MAD and MSE. B. a=0.1 produces a better forecast measured both by MAD and MSE. C. When we use MSE, a=0.1 produces a better forecast. O D. When we use MAD, a=0.1 produces a better forecast