1) For the data below: Month January February March April May June Jan Feb Month Automobile Battery Sales 20 21 15 (a) Develop a scatter diagram. (b) Develop a three-month moving average. (c) Compute MAD, MSE and MAPE. 14 13 16 Month March April 2) Use simple exponential smoothing with a = 0.3 to forecast battery sales for February through May. Assume that the forecast for January was for 22 batteries. Month Automobile Battery Sales 42 33 28 59 July August September October November December January February March April 3) The following table represents the new members that have been acquired by a fitness center. New members 45 60 57 65 Automobile Battery Sales 17 18 20 20 21 23 Assuming a = 0.3, p=0.4, an initial forecast of 40 for January, and an initial trend adjustment of 0 for January, use exponential smoothing with trend adjustment to come up with a forecast for May on new members.