作者todayjappie (elaine)
看板Statistics
标题[问题] 解不出来的考题,求神人解答!
时间Thu Apr 20 21:45:58 2017
http://i.imgur.com/l7y7sfE.jpg
解了很久,自己和同学都解不出来,请问有神人会吗?
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1F:推 guavic: 中餐部-西餐部得新数列D,H0=Ud<=20,Ha:Ud>20,test statis 04/21 00:08
2F:→ guavic: tic: Ud-20/s/n^0.5 ~ t(n-2) 04/21 00:08
3F:→ guavic: n-1才对 手滑QQ 04/21 00:09
4F:推 maoc: Paired t test 04/21 07:17