From: Sustainable coffee supply chain management: a case study in Buon Me Thuot City, Daklak, Vietnam
Count | Â | Â | Â | Â | Â | Â |
 |  | Collectors or traders examine the planting process and quality frequently | Total | |||
 |  | None | 1–2 times/crop | 3–5 times/crop | > 5 times/crop | |
Certification ownership | Yes | 2 | 12 | 38 | 14 | 66 |
No | 25 | 40 | 6 | 0 | 71 | |
Total | 27 | 52 | 44 | 14 | 137 | |
Chi-Square Tests | ||||||
 | Value | Df | Asymp. Sig. (2-sided) | |||
Pearson Chi-Square | 71.855a | 3 | .000 | |||
Likelihood Ratio | 84.249 | 3 | .000 | |||
Linear-by-Linear Association | 63.461 | 1 | .000 | |||
N of Valid Cases | 137 | Â | Â |