5. You are planning the number of information modules for customer service. You plan to have 3 modules. The average customer service time is 5 minutes, with a standard deviation of 10 minutes. On average, a customer arrives at the modules every 10 minutes, with a standard deviation of 20. Use the waiting lines approximation to answer the questions in this problem.
a) Coefficient of variation of the time between arrivals (three decimal places), Ca = ________________.
b) Coefficient of variation of service time (three decimal places), Cs = ________________.
c) Arrival rate (clients/hour, three decimal places), λ = ___________.
d) Service rate (clients/hour, three decimal places), μ = ___________.
e)Server utilization (%, two decimals)), rho = ______________.
f) Expected number of clients in the system (three decimal places), Ls = ________.
g) Time a customer is expected to spend in the system (minutes, three decimal places), Ws = __________________.