Please hand write the answer, i do not have Excel and i must understand the problem with each step/formula. Thanks

Question II: Forecasting 2. National Tiger Inc., sells rice cookers. Monthly sales for a 5-month period were as follows: Month Feb Mar Apr May Sales (in thousands) 19 21 22 24 Forecast June Sales volume using each of the following techniques (Note: round off all values to two decimal places): a) Nave approach (the most appropriate one based on plotting the data) b) A four-month moving average c) A weighted moving average using 0.4 for the most recent month, 0.2, 0.3 and 0.1 for the next most recent months. d) Exponential smoothing with a smoothing constant equal to 0.2 e) Linear Trend Equation f) Compare the forecast accuracy for a MSE metric using Exponential smoothing, and Linear Trend. Which among the two is a better technique for this data