McCullough Hospital uses a job-order costing system to assigncosts to its patients. Its direct materials include a variety ofitems such as pharmaceutical drugs, heart valves, artificial hips,and pacemakers. Its direct labor costs (e.g., surgeons,anesthesiologists, radiologists, and nurses) associated withspecific surgical procedures and tests are traced to individualpatients. All other costs, such as depreciation of medicalequipment, insurance, utilities, incidental medical supplies, andthe labor costs associated with around-the-clock monitoring ofpatients are treated as overhead costs. Historically, McCulloughhas used one predetermined overhead rate based on the number ofpatient-days (each night that a patient spends in the hospitalcounts as one patient-day) to allocate overhead costs to patients.Recently a member of the hospital’s accounting staff has suggestedusing two predetermined overhead rates (allocated based on thenumber of patient-days) to improve the accuracy of the costsallocated to patients. The first overhead rate would include alloverhead costs within the Intensive Care Unit (ICU) and the secondoverhead rate would include all Other overhead costs. Informationpertaining to the hospital’s estimated number of patient-days, itsestimated overhead costs, and two of its patients—Patient A andPatient B—is provided below: ICU Other Total Estimated number ofpatient-days 2,500 22,500 25,000 Estimated fixed overhead cost $4,122,500 $ 22,005,000 $ 26,127,500 Estimated variable overheadcost per patient-day $ 286 $ 117 Patient A Patient B Directmaterials $ 5,000 $ 6,700 Direct labor $ 26,250 $ 37,000 Totalnumber of patient-days (including ICU) 14 19 Number of patient-daysspent in ICU 0 7 Required: 1. Assuming McCullough uses only onepredetermined overhead rate, calculate: a. The predeterminedoverhead rate. b. The total cost, including direct materials,direct labor and applied overhead, assigned to Patient A andPatient B. 2. Assuming McCullough calculates two overhead rates asrecommended by the staff accountant, calculate: a. The ICU andOther overhead rates. b. The total cost, including directmaterials, direct labor and applied overhead, assigned to Patient Aand Patient B.