Tidwell Industries has the following overhead costs and cost drivers. Direct labor hours are estimated at 100000 for the year. Activity Cost Pool Cost Driver Est. Overhead Cost Driver Activity Ordering and Receiving Orders $ 135000 500 orders Machine Setup Setups 310500 450 setups Machining Machine hours 1550000 125000 MH Assembly Parts 1230000 1000000 parts Inspection Inspections 315000 500 inspections If overhead is applied using traditional costing based on direct labor hours, the overhead application rate is $12.30. $35.41. $10.00. $15.50.