McCullough Hospital uses a job-order costing system to assign costs to its patients. Its direct materials include a variety of items such as pharmaceutical drugs, heart valves, artificial hips, and pacemakers. Its direct labor costs (e.g.. surgeons, anesthesiologists, radiologists. and nurses) associated with specic surgical procedures and tests are traced to individual patients. All other costs, such as depreciation of medical equipment, insurance, utilities. incidental medical supplies, and the labor costs associated with around-the clock monitoring of patients are treated as overhead costs. Historically, McCullough has used one predetermined overhead rate based on the number of patient-days (each night that a patient spends in the hospital counts as one patient-day) to allocate overhead costs to patients. Recently a member of the hospital's accounting staff has suggested using two predetermined overhead rates (allocated based on the number of patient-days) to improve the accuracy of the costs allocated to patients. The rst overhead rate would include all overhead costs within the Intensive Care Unit (ICU) and the second overhead rate would include all Other overhead costs. Information pertaining to the hospital's estimated number of patient-days, its estimated overhead costs. and two of its patientsPatientA and Patient Bis provided below: ICU Other Total Estimated number of patient-days 2,000 18,000 20,000 Estimated xed overhead cost $ 3,200,000 $ 14,000,000 $ 17,200,000 Estimated variable overhead cost per patientday $ 236 $ 96 Patient A Patient B Direct materials $ 4,500 SIS 6,200 Direct labor $ 25,000 $ 36,000 Total number of patient-days (including ICU) 14 21 Number of patientdays spent in ICU 0 7 | Required: 1. Assuming McCullough uses only one predetermined overhead rate, calculate: a. The predetermined overhead rate. b. The total cost, including direct materials, direct labor and applied overhead. assigned to Patient A and Patient B. 2. Assuming McCullough calculates two overhead rates as recommended by the staff accountant. calculate: a. The ICU and Other overhead rates. b. The total cost, including direct materials, direct labor and applied overhead, assigned to Patient A and Patient B. (Round "Predetermined overhead rate" to 2 decimal places. Round other intermediate calculations and final answers to the nearest dollar amount.)