Polytechnic University of Puerto Rico ndustrial Engineering Department ENGI 2260 Engineering Economics Chapter 7 Student Name Student Number Utilizando hoja electronica Excel favor de hacer el siguiente problema. El mismo el uso de incremental analisis. Determine cual para poder utilizar IRR diseno es el escogido como mejor alternativa A manufacturing process can be designed for varying degrees of automation. The is relevant cost information Annual Annual Power and Maintenance $10,000 $9,000 $500 14,000 7,500 Determine which is best by after-tax analysis using an income tax rate of 40%, an after-tax MARR of 15%, and straight line depreciation. Assume that each has a life of five years and no BV or MV. Use each of the following methods: a. Annual worth b. Present worth c. Internal rate of return Then repeat the analysis for MACRS GDS 3 years class life and MACRS ADSS