• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

Confidence Interval

The term confidence interval refers to an interval estimate that provides information about the uncertainty or the precision of estimation for some population parameter of interest. In statistical inference, confidence intervals are one method of interval estimation, and they are widely used in frequentist statistics. There are several ways to calculate confidence intervals. This entry first emphasizes the importance of confidence intervals by distinguishing interval estimation from point estimation. It then introduces a brief history of confidence intervals. The essentials of constructing confidence intervals are discussed, followed by a brief introduction to other types of intervals in the literature. Confidence intervals have been emphasized in the social and behavioral sciences, but they are often misinterpreted in statistical practice. Thus, the entry concludes with a ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles