Crosswinds Hospital plans to use activity-based costing to assign hospital indirect costs to the care of patients. The hospital has identified the following activities and activity rates for the hospital indirect costs: Activity Activity Rate Room and meals $177 per day Radiology $250 per image Pharmacy $63 per physician order Chemistry lab $82 per test Operating room $740 per operating room hour The activity usage information associated with the two patients is as follows: Abel Putin Cheryl Umit Number of days 4 days 11 days Number of images 3 images 5 images Number of physician orders 6 orders 8 orders Number of tests 3 tests 6 tests Number of operating room hours 4 hours 7 hours a. Determine the activity cost associated with each patient. Abel Putin Cheryl Umit b. Why is the total activity cost different for the two patients?