Table 23 Comparison between the study sample responses depending upon whether the workers already have a solar system in their house
From: Solar energy implementation at the household level: Gaza Strip case study
| Â | Number | Arithmetic average | Standard deviation | "T" test | Level of significance |
|---|---|---|---|---|---|
Environmental benefit | |||||
 Yes | 39 | 3.510 | 0.962 | 0.261 | 0.794// |
 No | 161 | 3.262 | 1.037 | ||
Initial solar system cost | |||||
 Yes | 39 | 3.427 | 0.884 | 0.227 | 0.821// |
 No | 161 | 3.389 | 0.954 | ||
Economic savings | |||||
 Yes | 39 | 3.851 | 0.797 | 1.884 | 0.061// |
 No | 161 | 3.542 | 0.948 | ||
The total | |||||
 Yes | 39 | 3.596 | 0.797 | 0.84 | 0.402// |
 No | 161 | 3.464 | 0.898 | ||