Research Article
Determining the Optimal Order Quantity with Compound Erlang Demand under (T,Q) Policy
Table 4
Estimations of parameters
and
with respect to varied
.
| | | | c | a | MAPE | | c | a | MAPE |
| | 1 | 12.48 | 3.68 | 14.29% | 1 | 12.08 | 3.08 | 14.29% | | 2 | 22.96 | 3.45 | 8.00% | 2 | 22.13 | 3.01 | 12.00% | | 3 | 32.85 | 3.42 | 10.81% | 3 | 31.58 | 3.01 | 11.11% | | 4 | 42.32 | 3.45 | 10.64% | 4 | 40.71 | 3.00 | 12.77% | | 5 | 51.68 | 3.44 | 10.34% | 5 | 49.58 | 3.00 | 13.79% | | 6 | 60.71 | 3.44 | 10.29% | 6 | 58.25 | 2.98 | 14.71% | | 7 | 69.63 | 3.43 | 11.39% | 7 | 66.81 | 3.00 | 15.19% | | 8 | 78.46 | 3.44 | 12.36% | 8 | 75.15 | 2.99 | 15.73% | | 9 | 87.03 | 3.41 | 12.12% | 9 | 83.35 | 2.98 | 16.16% | | 10 | 95.84 | 3.40 | 11.93% | 10 | 91.46 | 3.00 | 16.51% | | 20 | 176.43 | 3.43 | 13.30% | 20 | 174.26 | 3.00 | 16.91% | | 30 | 252.31 | 3.43 | 13.70% | 30 | 245.37 | 2.97 | 17.40% | | 50 | 394.41 | 3.43 | 14.53% | 50 | 382.59 | 3.02 | 17.88% | | 100 | 643.37 | 3.40 | 14.84% | 100 | 533.04 | 2.99 | 18.37% | | 500 | 3021.17 | 3.43 | 15.12% | 500 | 2982.11 | 3.04 | 19.86% | | 1000 | 4873.52 | 3.44 | 17.21% | 1000 | 4638.47 | 3.01 | 21.35% |
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