A manager is trying to improve a single-server queueing system through automation. The average service time is 20 minutes per customer, exponentially distributed, and the arrival rate is 2 customers per hour (Poisson arrivals). The automated system will have a constant service time of 10 minutes.

What will the total hours explain Using 4 decimal places, in the automated system, the average time a customer can expect to wait in the waiting line.