bi2ste2: Sample sizes for the exact Fisher type test for...

In EQUIVNONINF: Testing for Equivalence and Noninferiority

Description

Sample sizes for the exact Fisher type test for noninferiority

Usage

bi2ste2(eps, alpha, p1, p2, bet, qlambd)

Arguments

eps	noninferiority margin to the odds ratio
alpha	significance level
p1	success rate in Population 1
p2	success rate in Population 2
bet	target power value
qlambd	sample size ratio m/n

Details

The program computes the smallest sample sizes m,n satisfying m/n = λ required for ensuring that the power of the randomized UMPU test does not fall below β.

Value

eps	noninferiority margin to the odds ratio
alpha	significance level
p1	success rate in Population 1
p2	success rate in Population 2
bet	target power value
qlambd	sample size ratio m/n
M	minimum size of Sample 1
N	minimum size of Sample 2
POW	power of the randomized UMPU test attained with the computed values of m, n

Author(s)

Stefan Wellek <[e-mail]>
Peter Ziegler <[e-mail]>

References

Wellek S: Testing statistical hypotheses of equivalence and noninferiority. Second edition. Boca Raton: Chapman & Hall/CRC Press, 2010, 6.6.1.

Examples

bi2ste2(0.5,0.05,0.9245,0.9065,0.80,1.00)

Example output

Loading required package: BiasedUrn
 EPS =  0.5    ALPHA =  0.05 
 P1 =  0.9245    P2 =  0.9065 
 BETA =  0.8    LAMBDA =  1 
 
 M =  194    N =  194         POW =  0.8010046

EQUIVNONINF documentation built on July 12, 2021, 5:08 p.m.