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Lower/Upper Confidence Intervals

Source: R/confidence.R
ci_lower.Rd

Calculate lower and upper confidence intervals given a mean, standard deviation, sample size, and confidence level. You may want to use ci_var() to calculate all values quickly.

Usage

ci_lower(mean, ssd, n, conf = 0.95)

ci_upper(mean, ssd, n, conf = 0.95)

Arguments

mean

Numeric. Mean: mean(var, na.rm = TRUE)

ssd

Numeric. Standard deviation: sd(var, na.rm = TRUE)

n

Integer. Amount of observations: n()

conf

Numeric (0-1). Confidence level.

Value

Vector with confidence limit value.

See also

Other Confidence: ci_var()

Examples

ci_lower(100, 5, 10)
#> [1] 96.42322
ci_upper(100, 5, 10)
#> [1] 103.5768