introduction of the deluxe model, the company's profits have steadily declined and management has become increasingly concerned about the accuracy of its costing system, Sales of the deluxe model have been increasing rapidly. Manufacturing overhead is assigned to products on the basis of direct labor-hours. For the current year, the company has estimated that it will incur $5,642,550 in manufacturing overhead cost and produce 15,000 units of the deluxe model and 123,000 units of the regular model. The deluxe model requires 1.0 hours of direct labor time per unit, and the regular model requires 0.5 hour. Material and labor costs per unit are as follows: Required: 1-a. Using direct labor-hours as the base for assigning manufacturing overhead cost to products, compute the predetermined overhead rate. 1.b. Using the predetermined overhead rate computed in 1-a above and other data from the problem, determine the unit product cost of each model. 2. Management is considering using activity-based absorption costing to apply manufacturing overhead cost to products. The activitybased system would have the following four activity cost pools: Determine the predetermined overhead rate for each of the four activity cost pools. 3. Using the predetermined overhead rates you computed in part (2), do the following: a. Compute the total amount of manufacturing overhead cost that would be applied to each model using the activity-based absorption costing system. After these totals have been computed, determine the amount of manufacturing overhead cost per unit of each model. b. Compute the unit product cost of each model (including direct materials, direct labor, and manufacturing overhead)