confidence intervals
confidence intervals, confidence limits The spread of values around the mean for a sample survey variable which, using the conventional 95 per cent confidence level, equate to the mean plus or minus two standard deviations, or standard errors of the mean. See also CENTRAL TENDENCY (MEASURES OF); VARIATION (STATISTICAL).
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Standard Deviation , The standard deviation is found throughout the behavioral and social science literature. It is the average spread among a set of scores around their… McCormick & Company, Inc. , mean1 / mēn/ • v. (past and past part. meant / ment/ ) [tr.] 1. intend to convey, indicate, or refer to (a particular thing or notion); signify: I do… Dispersion measures (Statistics) , interquartile range See measures of variation.
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confidence intervals