HypothesisTesting`
HypothesisTesting`
ChiSquareCI
ChiSquareCI[var,df]
gives a confidence interval based on a 
distribution with df degrees of freedom.
Details and Options
- To use ChiSquareCI, you first need to load the Hypothesis Testing Package using Needs["HypothesisTesting`"].
- ChiSquareCI[var,df] gives a confidence interval {min,max} for a population variance estimated by var.
- For confidence level
, 
and 
where 
is the 
quantile of a 
distribution with 
degrees of freedom. - ChiSquareCI is the confidence interval for a population variance based on a sample variance var estimated from a sample of size df+1.
- The following option can be given:
-
ConfidenceLevel 0.95 probability associated with a confidence interval
Examples
open allclose allBasic Examples (1)Summary of the most common use cases
Wolfram Research (2007), ChiSquareCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.
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Wolfram Research (2007), ChiSquareCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.Text
Wolfram Research (2007), ChiSquareCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.
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Wolfram Research (2007), ChiSquareCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.CMS
Wolfram Language. 2007. "ChiSquareCI." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.
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Wolfram Language. 2007. "ChiSquareCI." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html.APA
Wolfram Language. (2007). ChiSquareCI. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html
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Wolfram Language. (2007). ChiSquareCI. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.htmlBibTeX
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@misc{reference.wolfram_2025_chisquareci, author="Wolfram Research", title="{ChiSquareCI}", year="2007", howpublished="\url{https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html}", note=[Accessed: 02-April-2025
]}BibLaTeX
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@online{reference.wolfram_2025_chisquareci, organization={Wolfram Research}, title={ChiSquareCI}, year={2007}, url={https://reference.wolfram.com/language/HypothesisTesting/ref/ChiSquareCI.html}, note=[Accessed: 02-April-2025
]}