N | 均值 | 标准差 | t | Sig.(双侧) | 置信区间上下限 | |
21 | 1.4364 | 0.68235 | 2.931 | 0.008 | 0.1796 | 0.6932 |
N | 均值 | 标准差 | t | Sig.(双侧) | 置信区间上下限 | |
21 | 3.7066 | 5.77927 | 2.939 | 0.008 | 1.5315 | 5.8817 |
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