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gaoyang636

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10Â¥: Originally posted by xiaoyang123 at 2012-11-09 14:03:34
²»¹ýÎÒµÄÁ½×éÊý¾Ý¶¼ÊÇÕûÊý£¬Ã»ÓÐÆ½¾ùÊýºÍ·½²î¡£±ÈÈç˵£¬10¸öfemaleÖÐ3¸öÑôÐÔ£¬7¸öÒõÐÔ£»20¸ömaleÖÐ10¸öÑôÐÔ£¬10¸öÒõÐÔ¡£Òª±È½ÏfemaleºÍmaleµÄÑôÐÔÂÊÊÇ·ñÓÐÏÔÖøÐÔ²îÒì¡£²»ÖªÕâÑùµÄÇé¿öÊÇ·ñ¿ÉÒÔÓÃt-test¼ìÑé¡£...

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11Â¥2012-11-09 14:24:27
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wizardfan

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xiaoyang123: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú 2012-11-11 22:04:29
ÒýÓûØÌû:
10Â¥: Originally posted by xiaoyang123 at 2012-11-09 14:03:34
²»¹ýÎÒµÄÁ½×éÊý¾Ý¶¼ÊÇÕûÊý£¬Ã»ÓÐÆ½¾ùÊýºÍ·½²î¡£±ÈÈç˵£¬10¸öfemaleÖÐ3¸öÑôÐÔ£¬7¸öÒõÐÔ£»20¸ömaleÖÐ10¸öÑôÐÔ£¬10¸öÒõÐÔ¡£Òª±È½ÏfemaleºÍmaleµÄÑôÐÔÂÊÊÇ·ñÓÐÏÔÖøÐÔ²îÒì¡£²»ÖªÕâÑùµÄÇé¿öÊÇ·ñ¿ÉÒÔÓÃt-test¼ìÑé¡£...

definitely not t-test.
Check this website http://en.wikipedia.org/wiki/Fisher%27s_exact_test  

Although in practice it is employed when sample sizes are small, it is valid for all sample sizes.

So Fisher's exact test could be your choice as long as there is no relationship between gender and being positive.
12Â¥2012-11-09 22:52:53
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xiaoyang123

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13Â¥2012-11-12 09:25:27
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titus0805

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xiaoyang123: ½ð±Ò+1, ¡ïÓаïÖú 2012-11-15 09:00:07
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14Â¥2012-11-12 11:21:17
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youaiguo

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15Â¥2013-03-19 18:07:29
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fishyr

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13Â¥: Originally posted by xiaoyang123 at 2012-11-12 09:25:27
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