a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naje method. ii) A 3-month moving average. iii) A 6-month weighted average using \\( .1,1.1 .2,2 \\) and : with the heaviest weights applied to the most recent musth iv) Exponential smoothing using an \\( \\alpha=.3 \\) and a Septemic:forecast of 18 . v) A trend projection. a) Plot the monthly sales data. b) Forecast January sales using each of the following: i) Naje method. ii) A 3-month moving average. iii) A 6-month weighted average using \\( .1,1.1 .2,2 \\) and : with the heaviest weights applied to the most recent musth iv) Exponential smoothing using an \\( \\alpha=.3 \\) and a Septemic:forecast of 18 . v) A trend projection