Are old people more educated? Vs Are older people more educated?
If staying up late reduces ones score? Vs If staying up longer reduces ones score?
左右两边是不同的问题还是相同的?
有人说左边是T-TEST右边是CORRELATION,对吗?
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楼主: 天王腹黑
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[统计软件] 求助,T-TEST和CORRELATION |

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