Abstract
The logit Wald and Wilson score intervals for the binomial proportion are both symmetrical on the logit scale. They are closely related: the widths of the two intervals on the logit scale are shown to be related by a simple sinh function. Similarly, the Woolf logit Wald interval for the odds ratio and the analogous interval for the relative risk may be shortened by inverse sinh transformation. This modified interval can be calculated even when one of the cells contains a zero. It then takes a very simple form in which the appropriate centile of the chi-square distribution on one degree of freedom is substituted for the zero. These suggested modified intervals require evaluation of coverage probabilities.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
