1. The mean value of the voting rate in the treatment group and control group in 2002was 0.674 and 0.555, respectively, with a difference of -0.111, and the p-value was0.0000, […]
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1. The mean value of the voting rate in the treatment group and control group in 2002was 0.674 and 0.555, respectively, with a difference of -0.111, and the p-value was0.0000, […]