Question 15 (1 point) What three categories separate the expenses on a manufacturer?s income statement? O production, period, and indirect O materials, work in process, and finished goods O production, selling, and administrative O variable, fixed, and direct Question 16 (1 point) What is the term for products having different consumption ratios for different overhead activities? volume costing O activity-based costing O product diversity O overhead diversity Question 17 (1 point) Ganz, Inc. had materials inventory at July 1 of $12,000. The materials inventory at July 31 was $15,000, and the cost of direct materials used in production was $30,000. What was the cost of materials purchased during the month? $17,000 $20,000 $23,000 $33,000 Question 18 (1 point) For which of the following are time tickets filled out? O indirect labourers direct labourers managers supervisors Question 19 (1 point)