2020-08-072020-08-072011Ortega Irizo, F.J., Basulto Santos, J. y Camúñez Ruiz, J.A. (2011). A note about the chaotic behavior of the Wald Interval for a binomial proportion. Boletín de estadística e investigación operativa, 27 (1), 6-13.1889-3805https://hdl.handle.net/11441/100165It is well known that the coverage probability of the standard Wald confidence interval to estimate a binomial proportion has a very erratic behavior as a function of the parameters n (sample size) and p (probability of success) . Till now it has been thought that this behavior was “basically unpredictable”. Nevertheless, the analysis of this behavior allows to obtain a formula that provides, for a fixed p, all the sample sizes in which the coverage probability decreases sharply from n-1 to n.application/pdf8 pg.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Binomial distributionConfidence intervalCoverage probabilityinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess