Returns the critical value(s) from the normal distribution

This function returns the critical value(s) from the normal distribution given a central probability. This is particular useful for creating confidence intervals.

Usage

cnorm(p, mean = 0, sd = 1, side = c("upper", "both", "lower"))

Arguments

p

The probability associated with the critical value(s).

mean

The mean of the normal distribution. Default is 0.

sd

The standard deviation of the normal distribution. Default is 1.

side

A string that must be either "upper", "both", or "lower" indicating whether the ' area associated with the probability p is in the upper tail, both tails, or lower tail.

Examples

 # Get the critical value for a 95% confidence interval from the standard normal distribution
 cnorm(0.95, side = "both")
#> [1] -1.959964  1.959964