Results 21 to 30 of about 5,945,635 (209)

Becoming confident about confidence intervals [PDF]

open access: yesThe Bone & Joint Journal, 2017
A clear understanding of variability is at the heart of many of the studies published in The Bone & Joint Journal . The terms variability, dispersion, spread, distribution and variance, amongst others, are used to refer to the range of values within a dataset.
Perry, DC   +5 more
openaire   +3 more sources

Confidence interval how sure you are?

open access: yesJournal of Applied Hematology, 2014
Previously, researchers were reported P value as a basis for conclusion, but in this era of evidence-based medicine we are interested now about the precision of the results obtained that allow us to make right decisions in health care practice.
Areej Abdul Ghani Al Fattani
doaj   +1 more source

A New Exact Confidence Interval for the Difference of Two Binomial Proportions

open access: yesRevstat Statistical Journal, 2020
We consider interval estimation of the difference between two binomial proportions. Several methds of constructing such an interval are known. Unfortunately those confidence intervals have poor coverage probability: it is significantly smaller than the ...
Wojciech Zieliński
doaj   +1 more source

Multivariate Confidence Intervals [PDF]

open access: yes, 2017
Confidence intervals are a popular way to visualize and analyze data distributions. Unlike p-values, they can convey information both about statistical significance as well as effect size. However, very little work exists on applying confidence intervals to multivariate data.
Korpela, Jussi   +4 more
openaire   +2 more sources

The Shortest Clopper–Pearson Randomized Confidence Interval for Binomial Probability

open access: yesRevstat Statistical Journal, 2017
Zieli´nski (2010) showed the existence of the shortest Clopper–Pearson confidence interval for binomial probability. The method of obtaining such an interval was presented as well. Unfortunately, the confidence interval obtained has one disadvantage: it
Wojciech Zieliński
doaj   +1 more source

Estimation of Gini Index within Pre-Specied Error Bound [PDF]

open access: yes, 2015
Gini index is a widely used measure of economic inequality. This article develops a general theory for constructing a confidence interval for Gini index with a specified confidence coefficient and a specified width.
Chattopadhyay, Bhargab   +1 more
core   +3 more sources

Interval-Valued Intuitionistic Fuzzy Confidence Intervals

open access: yesJournal of Intelligent Systems, 2019
Confidence intervals are useful tools for statistical decision-making purposes. In case of incomplete and vague data, fuzzy confidence intervals can be used for decision making under uncertainty.
Kahraman Cengiz   +2 more
doaj   +1 more source

Fletcher-Turek Model Averaged Profile Likelihood Confidence Intervals [PDF]

open access: yes, 2014
We evaluate the model averaged profile likelihood confidence intervals proposed by Fletcher and Turek (2011) in a simple situation in which there are two linear regression models over which we average. We obtain exact expressions for the coverage and the
Abeysekera, Waruni   +2 more
core   +3 more sources

Fixed-width confidence interval for a lognormal mean

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We consider the problem of constructing a fixed-width confidence interval for a lognormal mean. We give a Birnbaum and Healy type two-stage procedure to construct such a confidence interval. We discuss some asymptotic properties of the procedure. A three-
Makoto Aoshima, Zakkula Govindarajulu
doaj   +1 more source

Assessing the similarity of dose response and target doses in two non-overlapping subgroups [PDF]

open access: yes, 2017
We consider two problems that are attracting increasing attention in clinical dose finding studies. First, we assess the similarity of two non-linear regression models for two non-overlapping subgroups of patients over a restricted covariate space.
Bretz, Frank   +4 more
core   +2 more sources

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