Problem 13-3 Output from a process contains 0.02 proportion of defective units. Defective units that go undetected into final assemblies cost $25 each to replace. An inspection process, which would detect and remove all defectives, can be established to test these units. The inspector, who can test 20 units per hour (which matches the current production rate), would be paid $8 per hour, including fringe benefits. Assume that the line will operate at the same rate (i.e., the current production rate) regardless of whether or not the inspection operation is added. a-1. Without the inspector, what is the current hourly cost of defects