A manager intends to order a new machine and must now decide on the number of spare parts to order along with the machine. The parts cost $411 each and have no salvage value. The manager has compiled the frequency distribution for the probable usage of spare parts:5 spare parts with frequency 0.17;6 spare parts with frequency 0.15;7 spare parts with frequency 0.17;8 spare parts with frequency 0.09; and 9 spare parts with frequency 0.42. For what range of shortage costs would stocking 7 spare parts constitute an optimal decision ? O a. Between 290.1 and 592.3 O b. Between 232.1 and 473.9 c. Between 193.4and 394.9 O d. Between 96.71 and 197.4

A manager intends to order a new machine and must now decide on the number of spare parts to order along with the machine. The parts cost $411 each and have no salvage value. The manager has compiled the frequency distribution for the probable usage of spare parts: 5 spare parts with frequency 0.17;6 spare parts with frequency 0.15;7 spare parts with frequency 0.17;8 spare parts with frequency 0.09 ; and 9 spare parts with frequency 0.42 . For what range of shortage costs would stocking 7 spare parts constitute an optimal decision ? a. Between 290.1 and 592.3 b. Between 232.1 and 473.9 c. Between 193.4and 394.9 d. Between 96.71 and 197.4