ci.sigma

The function calculates confidence intervals for \(\sigma^2\). We assume that the parent population is normal.

htest

univar

Contains functions from: Aho, K. (2014) Foundational and Applied Statistics for Biologists using R.  CRC/Taylor and Francis, Boca Raton, FL, ISBN: 978-1-4398-7338-0.

Ken Aho

asbio

A Collection of Statistical Tools for Biologists

ci.sigma function

<dl> <dt>data</dt>
<dd>A vector of quantitative data. Required if <code>summarized=FALSE</code>.</dd> <dt>conf</dt>
<dd>Level of confidence. 1 - P(type I error).</dd> <dt>S.sq</dt>
<dd>Sample variance, required if <code>summarized=TRUE</code>.</dd> <dt>n</dt>
<dd>Sample size, required if <code>summarized=TRUE</code>.</dd> <dt>summarized</dt>
<dd>Logical. If <code>summarized=TRUE</code> then the user must supply <code>S.sq</code> and <code>n</code></dd></dl>

Arguments

Author

Confidence interval for sigma squared. — ci.sigma

<dl>

 <dt>data</dt>
<dd>A vector of quantitative data. Required if <code>summarized=FALSE</code>.</dd>

 <dt>conf</dt>
<dd>Level of confidence. 1 - P(type I error).</dd>

 <dt>S.sq</dt>
<dd>Sample variance, required if <code>summarized=TRUE</code>.</dd>

 <dt>n</dt>
<dd>Sample size, required if <code>summarized=TRUE</code>.</dd>

 <dt>summarized</dt>
<dd>Logical. If <code>summarized=TRUE</code> then the user must supply <code>S.sq</code> and <code>n</code></dd>

</dl>

ci.sigma: Confidence interval for sigma squared.

Description

Usage

Value

Arguments

Author

References

See Also

Examples