Actual sales for 2020 of an enterprise producing spare parts for Auto Industry are given in the table below. Months Actual Sales 1 6000 2 4000 3 8000 4 7000 5 4000 6 7000 7 6000 8 8000 9 9000 10 10000 11 12000 12 13000 Find the equation that can be used for demand forecasting for this business, considering that sales follow a linear trend. (20p) Assuming that the actual sales given in the question are also the actual sales for the year 2021, evaluate the accuracy of your demand forecast by estimating the demands for 2021. (15p) For the 12th month of 2021, it is known that the products planned to be produced have taken their final shape by going through 3 stages. Information on these stages are given in the table below. There are 20 days worked in the 12th month. Find the required number of machines for each stage. (25p) Production Error Stage % Production Processing Period Time Per (hours) Unit (mins) Average Average Downtime Setup Time per Month per Month (mins) (mins) 120 200 80 150 90 100 8 2 3 5 4 6 8 8 20 25 10 Actual sales for 2020 of an enterprise producing spare parts for Auto Industry are given in the table below. Months Actual Sales 1 6000 2 4000 3 8000 4 7000 5 4000 6 7000 7 6000 8 8000 9 9000 10 10000 11 12000 12 13000 Find the equation that can be used for demand forecasting for this business, considering that sales follow a linear trend. (20p) Assuming that the actual sales given in the question are also the actual sales for the year 2021, evaluate the accuracy of your demand forecast by estimating the demands for 2021. (15p) For the 12th month of 2021, it is known that the products planned to be produced have taken their final shape by going through 3 stages. Information on these stages are given in the table below. There are 20 days worked in the 12th month. Find the required number of machines for each stage. (25p) Production Error Stage % Production Processing Period Time Per (hours) Unit (mins) Average Average Downtime Setup Time per Month per Month (mins) (mins) 120 200 80 150 90 100 8 2 3 5 4 6 8 8 20 25 10