so I got the accuracy rate for Neural network and logisitic and the AUC , R2 and RMSE,

where Neural network is higher but with 4% approximately, so I want to know what statisifcal test to test the significance of the results for the same dataset?

and then I will apply GA , which get the new model with reduced attributes of the original dataset, and will reapply Nueral network and Logistic again, so how to test the significance for both tools Before and After GA?

In sum , ONE dataset with Neural and Log , how test the significance between them?

Two Dataset, Before Genetic Algorithm ( FULL Dataset) and After GA ( Reduced Dataset) both with Neual and log, how test the significance?