Can you please get the ROI for projects 1 through 4 using the PW(i=) method. (you keep doing that until you get the range then you interpolate)? Thanks.

(Problem 2) Return on Investment (ROI)-Internal Rate of Return (IRR) For your senior projects, many of you will have to justify the solutions for your company problems based on engineering economics. Consider the list of (4) projects listed below. Negative numbers represent money that your supervisor will provide for you to SPEND (i.e. invest) into technology, training, resources etc. These are negative cash flows to the company. Positive numbers represent cost savings or positive cash flows that you would expect coming back to the company after you make your initial investment(s) and implement your changes. The company you are working for said they WILL NOT EVEN CONSIDER adopting a project that will give them a Return on Investment (ROI) or Internal Rate of Return (IRR) that is less than a company MARR value of 20%. PROJECTS 3 4 2000 -1200 -1000 -3000 -2100 -2400 -2000 900 3000 2500 2000 1400 2621 2700 3100 1600 0 300 4 0 0 ROI