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Table 9 Paired sample t test results

From: Optimal design of proportional–integral controllers for stand-alone solid oxide fuel cell power plant using differential evolution algorithm

Method Paired differences
Mean Correlation T df Sig. (2-tailed)
DE-PSO −.475895 −.196 −5.157 29 0.000
DE-IWO −8.969086 −.047 −14.179 29 0.000
PSO-IWO −8.493191 −.102 −13.133 29 0.000