CFA Level1 关于t检验中的 one tail test twotail test 11 个回复 - 31141 次查看
如题,请问该怎样判断t检验时要用one tail test 还是twotail test啊?notes上p277 有这样一句话:... This depends on whether the test you are concerned with is one tailed (use α) or twotailed (use α/2). ...2009-4-22 22:54 - dreamhk - CFA、CVA、FRM等金融考证论坛