4. A new robotic arm has been proposed by engineers to increase the automated spray painting rate on their vehicle production line. The investment cost is RM25,000, and the robotic arm will have a market (salvage) value of RM5,000 at the end of its expected life of five (5) years. Increased productivity attributable to the robotic arm will amount to RM8000 per year after extra operating costs have been subtracted from the value of the additional production The MARR is 20% per year (0) Draw the cash flow diagram for the new robotic arm. (ii) Evaluate the IRR of the new robotic arm. Is the robotic arm a good investment? 14 marks I 240 ASUS