Breadcrumb Home > Dictionary > Index R rejection region: Meaning and Definition of Find definitions for: rejec'tion re"gion Pronunciation: [key] — Statistics. Statistics. the set of values of a test statistic for which the null hypothesis is rejected. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rejectionist rejection slip TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: insipid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language