samplesize (version 0.1-5)

n.paired.t.test: Sample size for paired Student's t-test

Description

Computes sample size for paired Student's t-test with equal group size

Usage

n.paired.t.test(power = 0.8, alpha = 0.95, mean.diff = 0.8, sd.est = 0.83)

Arguments

power

required power 1-beta

alpha

required Level I-error 1-alpha

mean.diff

required minimum difference between group means

sd.est

standard deviation

Value

• sample size
  sample size in each group

References

Bock J., Bestimmung des Stichprobenumfangs fuer biologische Experimente und kontrollierte klinische Studien. Oldenbourg 1998

See Also

n.inep.t.test.eq(), n.inep.t.test.neq(), n.welch.test()

Examples

n.paired.t.test(power = 0.8, alpha = 0.95, mean.diff = 0.8, sd.est = 0.83)