Which of the following statements is incorrect with respect to scheduling in interactive systems? one of the oldest, simplest, fairest and most widely used algorithm is multiple queues with round-robin scheduling setting the quantum too short causes too many process switches and lowers CPU efficiency with priority scheduling to prevent high-priority processes from running indefinitely, the scheduler may decrease the priority of the currently running process if user 1 starts up 9 processes and user 2 starts up 1 process, with round robin or equal priorities, user 1 will get 90% of the CPU and user 2 will get only 10% of it