If the results of your split test are not statistically significant, you can either.
如果你的对比测试结果没能通过统计学意义的检测，你也可以这样。
Age difference of children has significant in dynamic test performance.
不同年龄的儿童动态测验成绩有显著差异。
The mean difference of the post-test was significant at the 0.05 level.
实验组和对比组时间的平均数差异经过t检验，在0.05的水平上具有显著性。
The positive rate of PPD test was no significant difference among each year.
各年度结核菌素阳性率差异无显著性；
The positive rate of PPD test was no significant difference among each year.
各年度结核菌素阳性率差异无显著性；
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