1. Carrier, A United Technologies Company, is considering the purchase of a 3D metal printer. They have narrowed their choices of printers to two manufacturers. The cost data for each manufacturer is shown in the table below. Using a present worth analysis, determine which manufacturer, if any, should be selected. Carrier will use a MARR of 7% per year to evaluate the alternatives. Manufacturer First cost Salvage Value Useful Life Operating and Maintenance Cost Annual Revenues MakerBot Glowforge $175,000 $225,000 15% of first cost None 4 years 6 years $5,500 per year $4,500 per year beginning in year 2 $58,000 per year $69,000 for the first beginning in year one, year decreasing by then decreasing by 3% per year $1,000 per year None $40,000 at the end of year 3 Overhaul Cost a. Assume repeatability of cycles to complete the present worth analysis. b. Assume a planning horizon of six years for the analysis. Assume a lease cost of $43,000 per year for years five and six for the Makerbot printer