confidence interval(redirected from Confidence belt)
Also found in: Dictionary, Medical.
confidence interval[′kän·fə·dəns ‚in·tər·vəl]
An interval which has a specified probability of containing a given parameter or characteristic.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
confidence intervalthe range of values round the mean of a SAMPLE within which one can state the PROBABILITY of the observation being correct for the parent population. This is usually expressed in terms of standard deviation units. See also MEASURES OF DISPERSION, CRITERIA AND LEVELS OF MEASUREMENT.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000