3. There is an assembly line which is required to produce 60,000 pieces per year and the line will operate a shift with 2,000 hrs per year, it is expected that the availability of the production line will be 95%. The time needed to produce one unit of product is 9 minutes. It is necessary to determine the number of people to be hired. 4. One company is engaged in manufacturing 3 different products. The 2024 production plan estimates to produce the following annual quantities: model "X" 10,000 pieces, model "Y" 18,000 pieces and model "Z" 22,000 pieces. The manufacturing time for each of these models is 10min,8min, and 18 minutes respectively. The company will operate 230 days/year with an 8-hour shift. Production staff are forecast to miss work 5% of the time and the expected level of quality is 93%. You are asked to determine how many operators you need to meet production goals