Consider the E2/M/1 model with = 4 and = 5. This model can be formulated

Consider the E2/M/1 model with λ = 4 and μ = 5. This model can be formulated in terms of transitions that only involve exponential distributions by dividing each interarrival time into two consecutive phases, each having an exponential distribution with a mean of 1/(2λ) = 0.125, and then defining the state of the system as (n, p), where n is the number of customers in the system (n = 0, 1, 2, . . .) and p indicates the phase of the next arrival (not yet in the system) (p = 1, 2).
Construct the corresponding rate diagram (but do not solve further).