Table 4 T-test results for HHO, SA and ABC
From: Vehicle routing problems based on Harris Hawks optimization
| Â | Scenario | Method | Mean | Std. deviation | Std. error mean | P_value |
|---|---|---|---|---|---|---|
1 | 8 customers 3 vehicles | HHO | 220.1634 | 1.229605574158 | 0.549896329865 | 0.00 |
SA | 220.1634 | 2.011608776079 | 0.899618793489 | 0.00 | ||
ABC | 220.1634 | 2.578602309004 | 1.153186009974 | 0.00 | ||
2 | 10 customers 3 vehicles | HHO | 269.8302 | 0.836660026534 | 0.374165738677 | 0.00 |
SA | 293.9009 | 3.209361307176 | 1.435270009441 | 0.00 | ||
ABC | 284.9794 | 2.683281573000 | 1.200000000000 | 0.00 | ||
3 | 14 customers 4 vehicles | HHO | 219.2101 | 0.547722557505 | 0.244948974278 | 0.00 |
SA | 278.3779 | 3.807886552932 | 1.702938636593 | 0.00 | ||
ABC | 276.2006 | 3.633180424917 | 1.624807680927 | 0.00 | ||
4 | 20 customers 4 vehicles | HHO | 297.457 | 0.894427190999 | 0.400000000000 | 0.00 |
SA | 385.7173 | 4.438468204234 | 1.984943324128 | 0.00 | ||
ABC | 334.7739 | 6.188699378706 | 2.76767050062 | 0.00 | ||
5 | 25 customers 5 vehicles | HHO | 251.976 | 5.630275304104 | 2.517935662403 | 0.00 |
SA | 376.6583 | 5.549774770205 | 2.481934729198 | 0.00 | ||
| Â | Â | ABC | 330.3308 | 3.114482300479 | 1.392838827718 | 0.00 |
6 | 30 customers 5 vehicles | HHO | 316.1595 | 0.547722557505 | 0.244948974278 | 0.00 |
SA | 419.6352 | 7.155417527999 | 3.200000000000 | 0.00 | ||
ABC | 354.6163 | 6.496152707565 | 2.905167809267 | 0.00 | ||
7 | 40 customers 6 vehicles | HHO | 319.0379 | 2.607680962081 | 1.166190378969 | 0.00 |
SA | 549.2129 | 7.463243262818 | 3.337663853656 | 0.00 | ||
ABC | 375.9213 | 3.563705936241 | 1.593737745051 | 0.00 | ||
8 | 50 customers 7 vehicles | HHO | 298.1563 | 1.949358868962 | 0.871779788708 | 0.00 |
SA | 626.9496 | 4.669047011972 | 2.088061301782 | 0.00 | ||
ABC | 377.2894 | 4.658325879541 | 2.083266665600 | 0.00 | ||
9 | 60 customers 7 vehicles | HHO | 401.5839 | 0.894427190999 | 0.400000000000 | 0.00 |
SA | 712.1566 | 1.483239697419 | 0.663324958071 | 0.00 | ||
ABC | 416.0673 | 5.099019513593 | 2.280350850198 | 0.00 | ||
10 | 70 customers 8 vehicles | HHO | 423.0535 | 1.303840481041 | 0.583095189484 | 0.00 |
SA | 694.4901 | 4.207136793593 | 1.881488772223 | 0.00 | ||
ABC | 442.3711 | 7.127411872482 | 3.187475490102 | 0.00 |