also one-tail adjective Date: 1947 being a statistical test for which the critical region consists of all values of the test statistic greater than a given value or less than a given value but not both
ONE-TAILED
Meaning of ONE-TAILED in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012