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A confidence interval for the ratio of treatment variances in a two-by-two crossover study
1Janssen Research Foundation Inc., Piscataway, New Jersey 08855.
Journal of Biopharmaceutical Statistics
|January 1, 1991
Abstract:
The distance between two variances is usually measured using the ratio, and a confidence interval for this ratio can be used to measure its magnitude. For a two-by-two crossover study, special considerations must be made because the observations for any subject are correlated. Here a confidence interval for the ratio of the treatment variances in a two-by-two crossover study is presented.