# confidence interval

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Related to confidence interval: Confidence level

## confidence interval

[′kän·fə·dəns ‚in·tər·vəl]
(statistics)
An interval which has a specified probability of containing a given parameter or characteristic.

## confidence interval

the 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.
References in periodicals archive ?
The confidence interval is used to support the reliability of this estimate.
A higher risk of bladder cancer was found in men who were consuming 4 or more cups of coffee per day with odds ratio and 95% confidence interval as 1.
Some generic AEDs had confidence intervals for AUC or [C.
25) did not significantly affect the length of the confidence interval, see Table 4.
Finally, using a two-sided confidence interval to test a
which implies the lack of a distributional assumption) is a valid alternative to a 95% confidence interval, then Wilson's point estimate simplifies to
The 95-percent confidence interval for the posttest academic responsibility data was CI = (2.
As with the mean, the median also has a confidence interval or a probability range.
pylori and 3 were undetermined, the specificity and NPV calculations had wide 95% confidence intervals, ranging from 52%-91% to 69%-100%, respectively.
The width of the confidence interval is \$300,000, which is the plus/minus factor, called the margin-of-error, that is applied to the estimate to create the confidence interval.
Applying a margin of error, or confidence interval, to the reporting of test score results for small schools "is a matter of fairness," Coladarci asserts.

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