An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in indianapolis. The company has set an acceptable ranze of repair time of 40.00 minutes to 90.00 minutes. Two firms have submitted bids for the work. In test trials, Firm A had a mean repair time of 61.00 minitet with a standard deviation of 4,00 minutes; and the other firm. Firm B, had a mean repair time of 67.00 minites with a standard deviation of 3,75 minutes. Compute the following capability indices for both firms: Glven the minimum threshold value of 1.50 for process capability, which firm would you choose? (Enter "FIRM A", "FRM B" or "NONE")