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D Question 15 3 pts Bates Company used a predetermined manufacturing overhead rate last year of $5 per machine hour, based on an estimate of 30,000 machine hours to be used during the year. Actual manufacturing overhead cost incurred for the year was $160,000. Actual machine hours used during the year was 35,000. Bates's under-applied or over-applied manufacturing overhead for last year was: $10,000 over-applied $10,000 under-applied $15,000 under-applied O $15,000 over-applied D Question 16 4 pts