The Problem: The following data represents monthly sales for a regional service provider in 100 customers/month for the last 18 months. Month 1 2 3 4 5 6 7 8 9 # of Customers 8 11 12 14 9 8 9 7 12 Month 10 11 12 13 14 15 16 17 18 # of Customers 17 12 15 14 17 8 5 7 6 1- Use the Moving Average Technique and at n=3 and n=7. a) What is the forecast at month 19 b) Calculate the accuracy at each value of (n) 2- Use the exponential smoothing Technique and at a=0.3 and a=0.7 a) What is the forecast at month 19 b) Calculate the accuracy at each value of (a) 3- Use the linear trend projection a) What is the forecast at month 22 b) Calculate the accuracy of this technique.