Table 3 Paired t-test result for the winsorisation of outlier data points in the GFSI dimensions
From: The effects of outdated data and outliers on Kenya’s 2019 Global Food Security Index score and rank
Dimensions | GFSI mean before winsorisation | GFSI mean after winsorisation | GFSI mean score difference | P-value | Significance level | t-values | Number of observations |
|---|---|---|---|---|---|---|---|
Affordability | 67.584 | 61.327 | − 6.257 | < 0.0001 | *** | − 13.517 | 113 |
Availability | 59.416 | 56.221 | − 3.195 | < 0.0001 | *** | − 7.999 | 113 |
Quality and safety | 60.960 | 60.958 | − 0.002 | 0.762 | Not significant | − 0.715 | 113 |
Overall | 62.929 | 58.982 | − 3.947 | < 0.0001 | *** | − 13.050 | 113 |