Calculates sample size or power for a two-sample binomial proportion test.
Usage
one_bino_size(p, p0, alpha, beta = NULL, n = NULL)
Arguments
- p
Numeric. True proportion.
- p0
Numeric. Null hypothesis proportion.
- alpha
Numeric. Type I error rate.
- beta
Numeric (optional). Type II error rate. Required for sample size calculation.
- n
Integer (optional). Sample size. Required for power calculation.
Value
Numeric. Returns sample size (if beta is given), or power (if n is given).
Note
Only one of beta (for sample size calculation) or n (for power calculation) should be specified.
Required arguments:
For sample size: "p", "p0", "alpha", "beta"
For power: "p", "p0", "alpha", "n"
Examples
# Required sample size
one_bino_size(p = 0.5, p0 = 0.3,
alpha = 0.05, beta = 0.2)
#> [1] 50
# Power
one_bino_size(p = 0.5, p0 = 0.3,
alpha = 0.05, n = 50)
#> [1] 0.8074304