LRTesteR (version 1.2.1)

poisson_lambda_one_sample: Test the lambda parameter of a poisson distribution.

Description

Test the lambda parameter of a poisson distribution.

Usage

poisson_lambda_one_sample(
  x,
  lambda,
  alternative = "two.sided",
  conf.level = 0.95
)

Value

An S3 class containing the test statistic, p value, likelihood based confidence interval, and alternative hypothesis.

Arguments

x

a numeric vector of at least 50 data values.

lambda

a number indicating the tested value of lambda

alternative

a character string specifying the alternative hypothesis, must be one of "two.sided" (default), "greater" or "less".

conf.level

confidence level of the likelihood interval.

Examples

library(LRTesteR)

# Null is true
set.seed(1)
x <- rpois(100, 1)
poisson_lambda_one_sample(x, 1, "two.sided")

# Null is false
set.seed(1)
x <- rpois(100, 2)
poisson_lambda_one_sample(x, 1, "greater")