4 A process control manager is considering two robots to improve materials-handling capacity in the production of rigid shaft couplings that make dissimilar drive components. Robot X has a first cost of $90,000, an annual M&O cost of $31.000, and $42.000 salvage value, and it will improve revenues by $96,000 per year. Robot Y has a first cost of $146,000, an annual M&O cost of $28,000, and $47,000 salvage value, and it will increase revenues by $121000 per year. The company's MARR IS 34% per year, and it uses a 3-year study period for economic evaluations. Calculate the incremental ROR, and identify the robot the manager should select. 10 points The incremental RORIS The manager should select robot (Click to select Book Hint P