# Lower and upper confidence interval

### From OpenToxipedia

Term | Lower and upper confidence interval |
---|---|

Description | Confidence Interval (Two-Sided): an estimated interval from the lower to upper confidence limit of an estimate of a parameter. |

Definition | Confidence Interval (Two-Sided): an estimated interval from the lower to upper confidence limit of an estimate of a parameter. This interval is expected to include the true value of the parameter with a specified confidence percentage, e.g., 95% of such intervals are expected to include the true values of the estimated parameters.
Confidence Interval (One-Sided ): an interval below the estimated upper confidence limit, or interval above the estimated lower confidence limit, that is expected to include the true value of an estimated parameter with a specified confidence ( percent of the time). Confidence Limit: an estimated value below (or above) which the true value of an estimated parameter is expected to lie for a specified percentage of such estimated limits. |

References | 1. IPCS. Environmental Health Criteria 228. Principles And Methods For The Assessment of Risk From Essential Trace Elements. WHO, Geneva, 2002 |

Comments | |

Additional Information |