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An Exact Confidence Interval for the Ratio of Two Related Proportions

✍ Scribed by Dr. R. A. Parker

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
532 KB
Volume
38
Category
Article
ISSN
0323-3847

No coin nor oath required. For personal study only.

✦ Synopsis

I propose an exact confidence interval for the ratio of two proportions when the proportions are not independent. One application is to estimate the population prevalence using a screening test with perfect specificity but imperfect sensitivity. The population prevalence is the ratio of the observed prevalence divided by the test's sensitivity. I describe a method to calculate exact confidence intervals for this problem and compare these results with approximate confidence intervals given previously.

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