短语词组短語tailed hypothesis test 雙側假設檢騐one -tailed hypothesis test 單尾假設檢騐left -tailed E test 左尾檢定two -tailed d test 雙側檢騐TWO -TAILED HYPOTHESIS TEST 假設測試right -tailed test 右尾檢定;右側檢騐 返回 tailed test