HypothesisTesting`
HypothesisTesting`

# NormalCI

NormalCI[μ,σ]

gives a confidence interval based on a normal distribution.

# Details and Options

• To use NormalCI, you first need to load the Hypothesis Testing Package using Needs["HypothesisTesting`"].
• NormalCI[μ,σ] gives a confidence interval {min,max} centered at μ based on a normal distribution with location parameter μ and scale parameter σ.
• NormalCI is the confidence interval for a population mean based on a sample mean μ and standard error σ if the true population variance is known.
• The following option can be given:
•  ConfidenceLevel 0.95 probability associated with a confidence interval

# Examples

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## Basic Examples(1)

A 95% confidence interval based on the normal distribution:

## Options(1)

### ConfidenceLevel(1)

A 99% confidence interval:

Wolfram Research (2007), NormalCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html.

#### Text

Wolfram Research (2007), NormalCI, Wolfram Language function, https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html.

#### CMS

Wolfram Language. 2007. "NormalCI." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html.

#### APA

Wolfram Language. (2007). NormalCI. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html

#### BibTeX

@misc{reference.wolfram_2024_normalci, author="Wolfram Research", title="{NormalCI}", year="2007", howpublished="\url{https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html}", note=[Accessed: 19-June-2024 ]}

#### BibLaTeX

@online{reference.wolfram_2024_normalci, organization={Wolfram Research}, title={NormalCI}, year={2007}, url={https://reference.wolfram.com/language/HypothesisTesting/ref/NormalCI.html}, note=[Accessed: 19-June-2024 ]}