ISCAM (version 1.0.0)

iscamonepropztest: One Proportion Z-Test and Interval

Description

iscamonepropztest calculates a one-proportion z-test and/or a corresponding confidence interval.

Usage

iscamonepropztest(
  observed,
  n,
  hypothesized = NULL,
  alternative = "two.sided",
  conf.level = NULL,
  verbose = TRUE
)

Value

This function prints the results of the one-proportion z-test and/or the confidence interval. It also generates plots to visualize the test and interval.

Arguments

observed

The observed number of successes. If a value less than 1 is provided, it is assumed to be the sample proportion.

n

The sample size.

hypothesized

The hypothesized probability of success under the null hypothesis. This is an optional parameter.

alternative

A character string specifying the form of the alternative hypothesis. Must be one of "less", "greater", or "two.sided". This is an optional parameter.

conf.level

The confidence level(s) for a two-sided confidence interval. This is an optional parameter.

verbose

Logical, defaults to TRUE. Set to FALSE to suppress messages

Examples

iscamonepropztest(observed = 35, n = 50, hypothesized = 0.5)

iscamonepropztest(
  observed = 0.8,
  n = 100,
  hypothesized = 0.75,
  alternative = "greater",
  conf.level = 0.95
)

iscamonepropztest(observed = 60, n = 100, conf.level = 0.90)