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Table 2 Two-sample Wilcoxon rank-sum (Mann–Whitney) test

From: An assessment of mobile phone-based dissemination of weather and market information in the Upper West Region of Ghana

Category Rank sum Category Rank sum Category Rank sum
Total sample
 Female 3695 Non-poor 6728.5 Young 11,418.5
 Male 20,615 Poor 17,581.5 Old 12,891.5
 z −0.74 z 0.347 z 1.161
 Prob > |z| 0.4594 Prob > |z| 0.7286 Prob > |z| 0.2456
Lawra District
 Female 179 Non-poor 663.5 Young 1317
 Male 2377 Poor 1892.5 Old 1239
 z 1.158 z 0.272 z 1.974
 Prob > |z| 0.2468 Prob > |z| 0.7857 Prob > |z| 0.0484
Jirapa District
 Female 2189 Non-poor 3193 Young 5001
 Male 8986 Poor 7982 Old 6174
 z −1.015 z 0.29 z −0.146
 Prob > |z| 0.31 Prob > |z| 0.7721 Prob > |z| 0.8838
  1. H 0: ratings (of the level of usefulness of mobile phone-based weather and market information) within a category are similar