Use IRR analysis to calculate the following based on the attached file: lastname firstname quiz data .xlsx lastname firstname quiz data xlsx 1) The best alternative based on IRR (20 points) 2) The incremental rate of return for the best alternative (20 points) Assume MARR = 20% Extra Credit: Calculate when the best alternative begins to make a profit based on the discount rate (10 points) Use IRR analysis to calculate the following based on the attached file: lastname firstname quiz data .xlsx lastname firstname quiz data xlsx 1) The best alternative based on IRR (20 points) 2) The incremental rate of return for the best alternative (20 points) Assume MARR = 20% Extra Credit: Calculate when the best alternative begins to make a profit based on the discount rate (10 points)