solve just ( E & F ) please

A company records reported below indicate monthly sales data for Z Company. Use the below mentioned techniques to help the administration: Month Sales (units) 9 11 11 12 13 October November December January February March April May June July 13 14 13 13 15 a) Use Nave method and forecast for next month. b) Employ 3-month moving average method and forecast for next month. c) Conduct 3-month weighted moving average by using weights 0.5, 0.33 and 0.17 on more recent months and forecast for the next month. d) Use Exponential smoothing with smoothing parameter 0.3 and forecast value 37 for the first period. Forecast for the next month. e) Use RMSE model and decide which technique (simple moving average, weighted moving average or exponential) is better? Briefly explain. 1) Plot the monthly data, moving averages and exponential smoothing estimates. Briefly explain the pattern