indt: Compute power for an Independent Samples t-test Takes means,...

In pwr2ppl: Power Analyses for Common Designs (Power to the People)

Compute power for an Independent Samples t-test Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Description

Compute power for an Independent Samples t-test Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Usage

indt(
  m1 = NULL,
  m2 = NULL,
  s1 = NULL,
  s2 = NULL,
  n1 = NULL,
  n2 = NULL,
  alpha = 0.05
)

Arguments

m1	Mean of first group
m2	Mean of second group
s1	Standard deviation of first group
s2	Standard deviation of second group
n1	Sample size for first group
n2	Sample size for second group
alpha	Type I error (default is .05)

Value

Power for Independent Samples t-test

Examples

indt(m1=22,m2=20,s1=5,s2=5,n1=99,n2=99)
indt(m1=1.3, m2=0, s1=4,s2=1,n1=78,n2=234)

pwr2ppl documentation built on Sept. 6, 2022, 5:06 p.m.