Sample Size Determination in Comparing Two Population Variances with Paired-data: Application to Bilirubin Tests

摘要

Sample size needed by using paired-data to compare two population variances is much smaller than that of using usual independent samples. In this paper, we proposed three parametric methods to compare two population variances with paired-data. After comparing the powers of all three methods, we furnish the tables to indicate the least sample sizes required in various parameter values for the method with the largest power. The bilirubin example is used to illustrate the usefulness of the tables.