confidence_mean {arkhe}

Confidence Interval for a Mean

Description

Computes a confidence interval for a mean at a desired level of significance.

Usage

confidence_mean(object, ...)

## S4 method for signature 'numeric'
confidence_mean(object, level = 0.95, type = c("student", "normal"))

Arguments

object

A numeric vector.

...

Currently not used.

level

A length-one numeric vector giving the confidence level. Must be a single number between 0 and 1.

type

A character string giving the type of confidence interval to be returned. It must be one "student" (the default) or "normal". Any unambiguous substring can be given.

Value

A length-two numeric vector giving the lower and upper confidence limits.

Author(s)

N. Frerebeau

See Also

Other summary statistics: confidence_binomial(), confidence_multinomial(), interval_credible(), interval_hdr()

Examples

## Confidence interval for a mean
x <- seq(from = -4, to = 4, by = 0.01)
y <- dnorm(x)

confidence_mean(y, type = "student")
confidence_mean(y, type = "normal")

## Confidence interval for a propotion
confidence_binomial(118, n = 236)

x <- c(35, 74, 22, 69)
confidence_multinomial(x)