two-tailed paired-sample t test的意思?

two-tailed paired-sample t test的意思? 数理统计中two-sample two-tail test指的是paired samples t test 用什么实现?数理统计中two-sample two-tail test指的是paired samples t test 用什么实现?SPSS? 英语翻译Paired Samples TestPaired Differences95% Confidence Interval of the Difference Mean Std.Deviation Std.Error Mean Lower Upper t df Sig.(2-tailed)Pair 1 大三 - 大二 2.80000 5.16720 2.31084 -3.61593 9.21593 1.212 4 .292就是这个了, 哪位大神可以简单向我讲解一下什么是T-test,one-Tailed t-Test,和two-Tailed t-Test?本人纯文科出身 简单易懂最好 paired-end mapping是什么意思 when he turned the corner,he found himself ------- by a man in black.A tailed B been tailed C was tailed D had been tailed Spss中的配对样本t检验（paired-samples t test）就是配对t检验(paired t test)吗 sa la 西班牙语kan sa sa xian Asymp.Sig.(2-tailed)什么意思 SPSS中的 初二英语语法点different kinds of foodsfood不是不可数名词吗为何要加Sa pair two pairs 等后用用名词单数还是复数 On the wall ,there are two pictures.___ is Tom's,___ is Mary'sA.One,one B.One,other C.One,the other D.One,others 请问泰语Sa-douk Sa-bai,Sa-nook是什么意思啊. two two two 1、Every day Ann eats ______ and ______.A、two mangos,four tomatos B、two mangoes,four tomatoes C、two manges,four tomatos D、two mangos,four tomatoes2、Alice ______ her homework yesterday.A、didn't B、don't C、didn't D、doesn't do3、Hi,Sa when no one answered the door,the next-door neighbor___through the windowpicked peeled paired peered