In December 2019, Huntington Ingalls (HII) shared in a $22BIL DOD contract to build 9 Virginia-class "fast attack" nuclear submarines in this decade. Consider just one bay within HII's manufacturing facility in Newport Beach, Virginia. Suppose subassemblies arrive according to a Poisson distribution with a mean of 4 units per hour and may queue in a holding area if the bay is busy. The time for performing the needed operation is exponential with a mean of 10 minutes. For all practical purposes, there is no limit on the size of the holding area capacity.

1. How would this system be represented in Kendall's notation?
2. What are the average arrival and service rates per hour for this situation?
3. Will this system reach steady state? Why or why not?
4. What is the average number of units waiting in queue?
5. What is the average wait time in the system?