Related Concept Videos
00:54Uncertainty: Confidence Intervals
11.9K
The confidence interval is the range of values around the mean that contains the true mean. It is expressed as a probability percentage. The interpretation of a 95% confidence interval, for instance, is that the statistician is 95% confident that the true mean falls within the interval. The upper and lower limits of this range are known as confidence limits. The confidence limits for the true mean are estimated from the sample's mean, the standard deviation, and the statistical factor...
11.9K
01:21Confidence Intervals
11.1K
An unbiased point estimate is often insufficient to predict a population estimate, such as population mean or population proportion. In this scenario, a confidence interval is used. A confidence interval is an estimate similar to a sample proportion. However, unlike the point estimate which is a single value, the confidence interval contains a range of values. These values have lower and upper limits, known as confidence limits, and can be designated as L1 and L2, respectively.
A...
A...
11.1K
01:19Interpretation of Confidence Intervals
10.3K
A confidence interval is a better estimate of the population than a point estimate, as it uses a range of values from a sample instead of a single value.
Confidence intervals have confidence coefficients that are crucial for their interpretation. The most common confidence coefficients are 0.90, 0.95, and 0.99, which can be written as percentages–90%, 95%, and 99%, respectively.
Suppose a person calculates a confidence interval with a confidence coefficient of 0.95. In that case, they can...
Confidence intervals have confidence coefficients that are crucial for their interpretation. The most common confidence coefficients are 0.90, 0.95, and 0.99, which can be written as percentages–90%, 95%, and 99%, respectively.
Suppose a person calculates a confidence interval with a confidence coefficient of 0.95. In that case, they can...
10.3K
01:24Confidence Coefficient
10.9K
The confidence coefficient is also known as the confidence level or degree of confidence. It is the percent expression for the probability, 1-α, that the confidence interval contains the true population parameter assuming that the confidence interval is obtained after sufficient unbiased sampling; for example, if the CL = 90%, then in 90 out of 100 samples the interval estimate will enclose the true population parameter. Here α is the area under the curve, distributed equally under...
10.9K
01:03Prediction Intervals
3.5K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.5K
01:25Confidence Interval for Estimating Population Mean
9.1K
A point estimate of the population mean is obtained from a single sample. Such a point estimate does not represent a population well because it needs to account for variability in the population. Single point estimate can also be biased despite the sample being selected randomly. Thus, a point estimate is often unreliable. A confidence interval is needed to reduce this unreliability.
A confidence interval for the mean is a range of values that provides an estimate of the population mean. As the...
A confidence interval for the mean is a range of values that provides an estimate of the population mean. As the...
9.1K
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
Clinical and economic impact of digital dashboards on hospital inpatient care: a systematic review.
JAMIA open·2025
Same author
The revised JBI critical appraisal tool for the assessment of risk of bias for analytical cross-sectional studies.
JBI evidence synthesis·2025
Same author
The revised JBI critical appraisal tool for the assessment of risk of bias for cohort studies.
JBI evidence synthesis·2024
Same author
The revised JBI critical appraisal tool for the assessment of risk of bias for quasi-experimental studies.
JBI evidence synthesis·2024
Same author
The 2-week systematic review (2weekSR) method was successfully blind-replicated by another team: a case study.
Journal of clinical epidemiology·2023
Same author
The revised JBI critical appraisal tool for the assessment of risk of bias for randomized controlled trials.
JBI evidence synthesis·2023
Same journal
Cost-effectiveness of antimicrobial treatment for inpatients with carbapenem-resistant Klebsiella pneumoniae infection: a systematic review of economic evidence.
JBI database of systematic reviews and implementation reports·2019
Same journal
What's the cost? Informing antimicrobial treatment of inpatients with economic evidence.
JBI database of systematic reviews and implementation reports·2019
Same journal
Nursing assessment and management of incontinence among medical and surgical adult patients in a tertiary hospital: a best practice implementation project.
JBI database of systematic reviews and implementation reports·2019
Same journal
Supporting the supporter: a focus on families of patients with chronic obstructive pulmonary disease.
JBI database of systematic reviews and implementation reports·2019
Same journal
Early postoperative mobilization in patients undergoing abdominal surgery: a best practice implementation project.
JBI database of systematic reviews and implementation reports·2019
Same journal
Electronic textile-based electrocardiogram monitoring in cardiac patients: a scoping review.
JBI database of systematic reviews and implementation reports·2019
Related Experiment Video
Updated: Mar 16, 2026
07:37
Assessment and Communication for People with Disorders of Consciousness
Published on: August 1, 2017
9.7K
Confidence in confidence intervals
1Research Fellow, The Joanna Briggs Institute, Peer Reviewer, JBI Database of Systematic Reviews and Implementation Reports.
JBI Database of Systematic Reviews and Implementation Reports
|August 18, 2016
Summary
No abstract available in PubMed .
