a) What forecasting technique(s) would be best suited to forecast the sales? Why?

b) Use data for years 2013-16 for building the forecast models

Moving Average of 2 data points

Linear Regression

Decomposition technique

Single Exponential Smoothing

i. Generate forecasts using alpha = 0.2

Double Exponential Smoothing

i. Generate forecasts using alpha = 0.2, beta = 0.12

Triple Exponential Smoothing

i. Generate forecasts using alpha = 0.2, beta = 0.12 gamma = 0.33

Years Quarter Sales 2013 1 362 2 385 3 432 4 341 2014 1 382 2 409 3 498 4 388 2015 1 473 2 513 3 583 4 474 2016 1 544 2 582 3 681 4 557 2017 1 628 2 708 3 773 4 592 2018 1 626 2 725 3 854 4 661 Years Quarter Sales 2013 1 362 2 385 3 432 4 341 2014 1 382 2 409 3 498 4 388 2015 1 473 2 513 3 583 4 474 2016 1 544 2 582 3 681 4 557 2017 1 628 2 708 3 773 4 592 2018 1 626 2 725 3 854 4 661