Jefferson, Inc. produces two different products (Product 5 and Product Z) using two different activities: Machining, which uses machine hours as an activity driver, and Inspection, which uses number of batches as an activity driver. The cost of Machining is $306,000, while the cost of Inspection is $42,750. The activity drivers are used as follows: Machine hours Number of batches Product 5Product Z 2,040 45 3,060 30 Total 5,100 75 What proportion of Inspection activity is used by Product z? 60% 68% o 40% 32%