If you have a large sample, you can do whatever way.

来源: Pink侠于 2012-12-12 18:32:51 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (41 bytes)

回答: I have a question regarding the significant difference testing. 由 silymind 于 2012-12-12 16:53:13

Small sample, go do some research.

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