ahow step by step calculation and formulas

Q6 [14 pts]. Consider the same campus security service in Q5 : On average, 12 students request the service every hour. The time between requests is variable with a standard deviation of 5 minutes. It takes, on average, 60 minutes for an officer to pick up a student and take them to their desired location, with a standard deviation of 20 minutes. Due to recent restructuring in the service, it now employs 8 security officers, and when all officers are busy serving students, it immediately diverts incoming requests to a third-party company so that students do not wait. A [10 pts]. How many student requests, on average, are diverted to the third-party company every hour? What is the utilization of the security officers? B [4 pts]. If the campus security service aims to meet 92% of student requests with its existing 8 officer how much should its service time change? Provide one specific recommendation that can achieve su change