Sloan Woods manufactures jewelry boxes. The primary materials (wood, brass, and glass) and direct labor are assigned directly to the products. Manufacturing overhead costs are allocated based on machine hours. Data for the year follow: (Click the icon to view the cost data.) Read the requirements. Requirement 1. Compute the predetermined overhead allocation rate. Round to two decimal places. Data table Sloan Woods manufactures jewelry boxes. The primary materials products. Manufacturing overhead costs are allocated based on machine hours. Data for the year follow: (Click the icon to view the cost data.) Read the requirements. Requirements 1. Compute the predetermined overhead allocation rate. Round to two decimal places. 2. Post actual and allocated manufacturing overhead to the Manufacturing Overhead T-account. 3. Prepare the journal entry to adjust for underallocated or overallocated overhead. 4. The predetermined overhead allocation rate usually turns out to be inaccurate. Why don't accountants just use the actual manufacturing overhead rate