Consider two investments with the following sequences of cash flows 3 (a) Plot the present worth vs. MARR curve for each project on the same chart and compute the ROR for each investment (Using excel). (b) Based on the chart (part a), find the MARR that makes the two projects equivalent. (c) Which project is more economically desirable at MARR of 15\%? Use the incremental ROR analysis method (Using excel) Consider two investments with the following sequences of cash flows 3 (a) Plot the present worth vs. MARR curve for each project on the same chart and compute the ROR for each investment (Using excel). (b) Based on the chart (part a), find the MARR that makes the two projects equivalent. (c) Which project is more economically desirable at MARR of 15\%? Use the incremental ROR analysis method (Using excel)