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Table 4 Residual ADF unit root test

From: Renewable energy, energy efficiency, and eco-friendly environment (R-E5) in Nigeria

Variable None Constant Constant and trend Conclusion
Residual/ t-obs t-obs t-obs OI Lag
Error term −5.2985 −5.1772 −5.0410 I(0) [1]
  1. The number in square brackets ([]) indicates the order of diagnostic tests