Hill Manufacturing uses departmental cost driver rates to apply manufacturing overhead costs to products. Manufacturing overhead costs are applied on the basis of machine hours in the Machining Depariment and on the basis of direct labor hours in the Assembly Department. At the beginning of 205, the following estimates were provided for the coming year: Required: A. Compute the piantwide overhead rate using direct labor hour as allocation basis. B. Compute the total cost of Job #846 using the plantwide overhead rate C. Compute departmental overhead rate for each department. D. Compute the total cost of Job 846 using departmental overhead rate. E. Provide possible reasons why Hill Manufacturing uses two different cost allocation rates. Hill Manufacturing uses departmental cost driver rates to apply manufacturing overhead costs to products. Manufacturing overhead costs are applied on the basis of machine hours in the Machining Depariment and on the basis of direct labor hours in the Assembly Department. At the beginning of 205, the following estimates were provided for the coming year: Required: A. Compute the piantwide overhead rate using direct labor hour as allocation basis. B. Compute the total cost of Job #846 using the plantwide overhead rate C. Compute departmental overhead rate for each department. D. Compute the total cost of Job 846 using departmental overhead rate. E. Provide possible reasons why Hill Manufacturing uses two different cost allocation rates