Question 4 a) What is the underlying premise in using Discounted Cash Flow (2 marks) (DCF) to evaluate project investment decisions? b) Consider the following 2 machines in Table Q4b below. Using (6 marks) the tables provided, calculate Equivalent Annual Value to ascertain which machine is the best investment. Assume an interest rate i of 3%. Table Q4b Initial Cost Scrap Annual Benefits Machine Value Life (Years) Machine 1 10500 1350 2250 5 Machine 2 11500 1250 2900 4 c ) (9 marks) A medical device manufacturing company is considering the viability of manufacturing a new product in Dublin. Estimated fixed costs are 360,000 and estimated variable costs are 10 per unit. The proposed price for the new product is 45. Company Management have requested the following information - please provide, showing all calculations: i) The number of units that must be sold to breakeven. ii) The number of units that must be sold to earn 300,000 target profit. iii) The profit that would result if 28,000 units were sold. iv) The selling price that would have to be charged to give a profit of 300,000 on sales of 15,000 units, with fixed costs of 360,000 and variable costs of 10 per unit. d) (4 marks) Briefly outline the obligations of Engineers under Engineers Ireland Code of Ethics. e) Outline two examples of ethical dilemmas which an Engineer (4 marks) might face in the workplace