Question 4 (20 points) You are a senior industrial engineer in SKY.net and you have to evaluate the three recent mutually exclusive projects using the incremental rate of return analysis. Your assistant has already gathered the necessary data for you, which is given below: Cash Flow Year n Project AI Project ML Project BC 0 -900 $ -4900 $ -1900 $ 1 400 $ 7400 $ 1400 $ 2 2400 $ 500 $ 1900 $ Your assistant also presumes that the MARR ratio should be 10%. General management wants you to calculate the IRR of each project and then present your selection of one of the mutually exclusive projects. You should not forget to explain your assumptions and the reasoning behind your calculations