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student's t-test
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2Â¥2011-05-19 22:08:30
winniexiong
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3Â¥2011-05-19 22:30:47
jmmjx
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winniexiong(½ð±Ò+2): 2011-05-20 13:23:45
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ͳ¼ÆÉÏѧ¹ý£¬µ«ÊǶàÄê²»ÓüDz»ÇåÁË googleÁËһϠA t-test is any statistical hypothesis test in which the test statistic follows a Student's t distribution, if the null hypothesis is supported. It is most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistic (under certain conditions) follows a Student's t distribution. ÍøÖ·http://en.wikipedia.org/wiki/Student's_t-test |
4Â¥2011-05-20 09:16:49
wl8457
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5Â¥2011-05-25 09:29:37
cranepeaks
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6Â¥2012-07-12 14:08:23
yalefield
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°³¸ø¸ö½âÊͰɣº A statistical distribution published by William Gosset in 1908. His employer, Guinness Breweries, required him to publish under a pseudonym, so he chose Student. ËùÒÔÄØ£¬Õâ¸ö·Ö²¼Ó¦¸Ã½ÐGosset·Ö²¼£» ¿ÉÊÇÄØ£¬ËûµÄÀϰ岻ÈÃÓÃÕæÃû£» ËùÒÔWilliam GossetÑ¡ÔñÁËStudentÕâ¸ö¼ÙÃû×Ö£¬¶øÏàÓ¦µÄ·Ö²¼£¬Ò²¾ÍÃüÃûΪt·Ö²¼ÁË¡£ Eric W. Weisstein. "Student's t-Distribution." From MathWorld¡ªAWolfram Web Resource. http://mathworld.wolfram.com/Studentst-Distribution.html |
7Â¥2013-05-01 22:43:46
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8Â¥2015-04-07 18:38:48














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