Question 5 Forecasting - Apple iPad Air 2021 L Apple Inc is preparing the demand forecast of the iPad Air for the year 2021. The operations manager, Mr Android FUNG has collected the sales data of the iPad Air from last year as listed below. He would like to compare the two models, Forecast include Trend Model and Least Square Regression Model, Please complete the sales forecast of last year retrospectively using these two models for the period of Jan-Dec 2020. (4 Marks) Assuming E14.2020 = 1800; L0. 2000 - 250; alpha=0.6; delta 0.2 [Remark: Round your final forecast values to nearest integer and keep 2 decimal places for all intermediate steps.] Month 2020 Actual Sales Jan 2050 Feb 2200 Mar 2600 Apr 2800 May 3200 Jun 3500 Jul 3800 Aug 4000 Sep 4300 4500 4800 Dec 5100 Oct Which model you would suggest? Why? I Mark)