Mann–Whitney U test result for age group variables (below 45 vs 45 and over)
| Means rank (n = 58) | ||||||
|---|---|---|---|---|---|---|
| Mann–Whitney U | Z | Asymp. Sig. (2-tailed) | Below 45 (n = 24) | 45 and over (n = 34) | Interpretation | |
| Benefit item showing significant result | ||||||
| 03BN. Off-grid renewable energy systems (solar, wind, battery storage) | 309.0 | −1.822 | 0.068 | 25.38 | 32.41 | Borderline significance (p < 0.05) |
| 07BN. Structural resilience against extreme climate conditions (bushfires, drought, flooding) | 299.0 | −2.372 | 0.018 | 24.96 | 32.71 | Significant difference |
| Barrier item showing significant result | ||||||
| 01BR. The upfront cost of building an Earthship home makes it unaffordable for most Australians | 290.0–1.937 | 0.053 | 34.42 | 26.03 | Borderline significance (p < 0.05) | |
| 10BR. Constructing Earthships is a labor- intensive process requiring specialized skills. | 277.5–2.137 | 0.033 | 34.94 | 25.66 | Significant difference | |
| Means rank ( | ||||||
|---|---|---|---|---|---|---|
| Mann–Whitney U | Z | Asymp. Sig. (2-tailed) | Below 45 ( | 45 and over ( | Interpretation | |
| 03BN. Off-grid renewable energy systems (solar, wind, battery storage) | 309.0 | −1.822 | 0.068 | 25.38 | 32.41 | Borderline significance ( |
| 07BN. Structural resilience against extreme climate conditions (bushfires, drought, flooding) | 299.0 | −2.372 | 0.018 | 24.96 | 32.71 | Significant difference |
| 01BR. The upfront cost of building an Earthship home makes it unaffordable for most Australians | 290.0–1.937 | 0.053 | 34.42 | 26.03 | Borderline significance ( | |
| 10BR. Constructing Earthships is a labor- intensive process requiring specialized skills. | 277.5–2.137 | 0.033 | 34.94 | 25.66 | Significant difference | |
Note(s): Grouping Variable: Age Group (below 45 and over 45)
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