(2) (12 pts) ABC company is considering two different injection molding machines for the new production line. They have to choose one of these two models. The cost data for the two alternatives are given in the table below. MARR is 10% X21-T Model Z24-T Model Initial cost Annual operating cost Benefits /Year Salvage value Life S440K 75K 150K 35K $580K 35K 130K 30K 12 Years a) b) Calculate the rate of return for each alternative. What is your conclusion for part a? Using the internal rate of return (IRR) analysis, which machine should be selected? Show all the required steps. Round the answer to 4 decimal place (0.1234 0r 12.34%). Use interpolation to find i values. Excel solution is NOT accepted