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14
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16
26
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30
A B C D E F G H I J
Problem 9-13
Queuing Model M/M/s (Exponential Service Times)
Probability (% of time) system is empty (P0)0.2000
6 0.0524 0.7903
7 0.0419 0.8322
8 0.0336 0.8658
9 0.0268 0.8926
10 0.0215 0.9141
40
41
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44
55
56
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A B C D E F G H I J
20 0.0023 0.9908
Computations
n or s
(lam/mu)^n/n!
Cumsum(n-1)
term2 P0(s) Rho(s) Lq(s) L(s) Wq(s) W(S)
0 1
1 0.8 1 4 0.2 0.8 3.2 4 0.009091 0.011364
12 1.43E-10 2.2255409 1.53711E-10 0.4493 0.066667 4.93E-12 0.8 1.4E-14 0.002273
13 8.83E-12 2.2255409 9.40747E-12 0.4493 0.061538 2.77E-13 0.8 7.87E-16 0.002273
14 5.04E-13 2.2255409 5.35064E-13 0.4493 0.057143 1.46E-14 0.8 4.14E-17 0.002273
15 2.69E-14 2.2255409 2.84219E-14 0.4493 0.053333 7.19E-16 0.8 2.04E-18 0.002273
16 1.35E-15 2.2255409 1.41611E-15 0.4493 0.05 3.35E-17 0.8 9.51E-20 0.002273