6.83. To calculate this value, follow these steps:
Find the servicing rate μ: μ = λ/ρ = 0.03/0.17 = 0.17647.
Plug the appropriate values in the formula for the time in the system: W = 1/(μ - λ):
W = 1/(μ - λ) = 1/(0.17647 - 0.03) = 6.83
To find the value of the actual waiting time, multiply the result by ρ = λ/μ:
Wq = ρ × W = 0.17 × 6.83 = 1.16
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