Final answer:
A turnkey information system is a ready-to-use system developed by a vendor, but the day-to-day operations are usually managed by the hospital staff.
Step-by-step explanation:
The correct answer is Hospital staff oversees system day-to-day operations. This is usually NOT true about a turnkey information system. A turnkey information system is a fully developed and ready-to-use system that is typically developed and provided by a vendor. It is designed to be implemented without requiring extensive customization by the user. However, the day-to-day operations of the system are usually managed and overseen by the hospital staff.