Number of case projects | ea. | 210 | |
Mean, award bid | U$ | 20,916,801.39 | SD 31,430,304.83 |
Mean, project final cost | U$ | 21,324,687.90 | SD 31,831,462.92 |
Mean, number of bidders | ea. | 4.28 | SD 2.13 |
Mean, CV of bids | % | 7.42 | SD 4.76 |
Mean, project cost change | % | 5.36 | SD 5.99 |
50% | Mean, top 50% CV,% | 7.61 | 4.45 | 6.75 | 4.24 | 6.39 | 7.98 |
Mean, bottom 50% CV,% | 3.66 | 6.20 | 3.91 | 3.93 | 3.03 | 5.03 | |
0.01 | 0.36 | 0.16 | 0.87 | 0.15 | 0.24 | ||
40% | Mean, top 40% CV,% | 7.64 | 4.62 | 6.52 | 4.26 | 6.09 | 8.94 |
Mean, bottom 40% CV,% | 3.28 | 5.47 | 3.24 | 4.24 | 3.13 | 4.50 | |
0.02 | 0.70 | 0.12 | 0.99 | 0.33 | 0.14 | ||
30% | Mean, top 30% CV,% | 6.98 | 4.15 | 6.97 | 4.75 | 7.27 | 9.24 |
Mean, bottom 30% CV,% | 3.36 | 5.63 | 3.20 | 5.27 | 2.94 | 2.50 | |
0.04 | 0.60 | 0.15 | 0.87 | 0.27 | 0.05 | ||
20% | Mean, top 20% CV,% | 6.11 | 4.76 | 8.62 | 3.18 | 3.99 | 6.19 |
Mean, bottom 20% CV,% | 3.61 | 5.61 | 2.97 | 6.34 | 4.00 | 2.19 | |
0.31 | 0.84 | 0.15 | 0.35 | 0.99 | 0.01 | ||
10% | Mean, top 10% CV,% | 7.59 | 8.04 | 12.67 | 2.13 | 2.80 | 7.30 |
Mean, bottom 10% CV,% | 4.22 | 8.54 | 3.97 | 8.58 | 2.95 | 1.17 | |
0.44 | 0.95 | 0.26 | 0.55 | 0.96 | 0.02 |
Number of case projects | ea. | 210 |
Mean, number of bidders (SD) | ea. | 4.28 (2.13) |
Mean, CV (SD) | % | 7.42 (4.76) |
Mean, project cost change (SD) | % | 5.36 (5.99) |
Mean, project cost change, above-average CV (SD) [A] | % | 6.49 (6.73) |
Mean, project cost change, below-average CV (SD) [B] | % | 4.24 (4.92) |
– | 0.01 |