Results of the Mann–Whitney U test to compare willingness to use treated wastewater given a particular motivator across respondents in low-technology and high-technology sites
Motivators . | Wastewater technology level . | N . | Median . | Rank average . | Sum of ranks . | U . | p . |
---|---|---|---|---|---|---|---|
Cost | High | 140 | 0.0 | 125.57 | 17,580.0 | 7,710.0 | 0.04* |
Low | 129 | 0.0 | 145.23 | 18,735.0 | |||
Current water shortages | High | 140 | 1.0 | 127.66 | 17,872.5 | 8,002.5 | 0.10 |
Low | 129 | 1.0 | 142.97 | 18,442.5 | |||
Future water shortages | High | 140 | 1.0 | 122.41 | 17,138.0 | 7,268.0 | 0.00* |
Low | 129 | 3.0 | 148.66 | 19,177.0 | |||
Ecological conservation | High | 140 | 1.5 | 120.47 | 16,866.0 | 6,696.0 | 0.00* |
Low | 129 | 3.0 | 150.77 | 19,449.0 |
Motivators . | Wastewater technology level . | N . | Median . | Rank average . | Sum of ranks . | U . | p . |
---|---|---|---|---|---|---|---|
Cost | High | 140 | 0.0 | 125.57 | 17,580.0 | 7,710.0 | 0.04* |
Low | 129 | 0.0 | 145.23 | 18,735.0 | |||
Current water shortages | High | 140 | 1.0 | 127.66 | 17,872.5 | 8,002.5 | 0.10 |
Low | 129 | 1.0 | 142.97 | 18,442.5 | |||
Future water shortages | High | 140 | 1.0 | 122.41 | 17,138.0 | 7,268.0 | 0.00* |
Low | 129 | 3.0 | 148.66 | 19,177.0 | |||
Ecological conservation | High | 140 | 1.5 | 120.47 | 16,866.0 | 6,696.0 | 0.00* |
Low | 129 | 3.0 | 150.77 | 19,449.0 |
*Significantly different at 95% confidence level.