Figure 10From: Does time series analysis confirms the relationship between space weather effects and the failures of electrical grids in South Poland?Wilcoxon Matched Pairs Test results for X (failures linked to the days with \(5\leq Kp<6\)) and Y (with Kp index values ≥6) groups, where Z means the statistic value of the Wilcoxon test when \(n>25\)Back to article page