Question 6: Assume that you are investigating buying one of three different robots. Use a MARR of 10%. Calculate the ROR to make the economic decision between the robots. a) Which robot would you select based upon the IRR? b) What is the incremental IRR between Robot B and C? c) What is the incremental IRR between Robot B and A ? d) If you had enough money to buy all 3 of the robots (the robots are independent), which would you select based on a MARR of 10% ? e) What is the IRR of Robot A? f) What is the IRR of Robot B ? g) What is the IRR of Robot C