8. Zubair Manufacturing Company uses a job order cost system in each of its two manufacturing departments. Manufacturing overhead is applied to jobs on the basis of direct labor cost in Department A and direct labor hours in Department B. In establishing the predetermined overhead rates for 2020, the following estimates were made for the year. Manufacturing overhead Direct labor costs Direct labor hours Machine hours Department A B 450,000 400,000 300,000 50,000 25,000 20,000 50,000 60,000 Department A B $70,000 $63,000 $60,000 $55,000 $86,000 $37,500 Direct materials used Direct labor costs Manufacturing overhead incurred Direct labor hours Machine hours 2,000 4,000 1,250 5,250 Business Administration Program Final Assessment Semester Fall 2020 Page During January, the job cost sheets showed the following costs and production data Instructions: (a) Compute the predetermined overhead rate for each department. (b) Compute the total manufacturing costs assigned to jobs in January in each department. (c) Compute the under-or-over applied overhead for each department at January 31