ssize.z.test: Sample size of a Z-Test for Population Mean

In alurie43/stats4332: Statistics 4332 Functions

Description

Computes the Power of a Z-test for the Population Mean

Usage

ssize.z.test(
  m0,
  m1,
  sd,
  power = 0.9,
  sig.level = 0.05,
  alternative = "two.sided"
)

Arguments

m0	The value of the population mean from the null hypothesis
m1	An alternative value of the population mean
sd	Population standard deviation
power	Power of the test
sig.level	Significance level, default is 0.05
alternative	type of alternative, with values "two.sided","less" or "greater"

Value

Sample size required to achieve the given power

Examples

ssize.z.test(m0 = 3.25, m1 = 3.5, sd = 1, power = 0.9,
sig.level = 0.01, alternative = "two.sided")
ssize.z.test(m0 = 3.25, m1 = 3, sd = 1, power = 0.92,
sig.level = 0.10, alternative = "less")

alurie43/stats4332 documentation built on Dec. 19, 2021, 1:37 a.m.