please post steps of work. USE EXCEL!

Assignment 2 Q1. National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows: Month Feb. Mar. Apr. May. Jun. Jul. Aug. Sales (000)Units 12 22 9 24 19 27 24 a. Forecast September sales volume using each of the following: (2) A four-month moving average. (3) A weighted average using 0.5 for August, 0.4 for July, and 0.1 for June. (4) Exponential smoothing with a smoothing constant equal to 0.10, assuming a March forecast of 15(000). (5) A linear trend equation Q2. Two different forecasting techniques (F1 and F2) were used to forecast demand for cases of bottled water. Actual demand and the two sets of forecasts are as follows: Period 1 2 3 4 5 6 7 8 Demand 68 75 70 74 69 72 80 78 PREDICTED DEMAND F1 F2 62 67 69 68 72 70 66 70 73 72 65 76 74 79 74 85 a. Compute MAD for each set of forecasts. Given your results, which forecast appears to be more accurate? b. Compute the MSE for each set of forecasts. Given your results, which forecast appears to be more accurate