Improvement of the Wald method applied to the evaluation of zero-inflated binomial linear functions
| Autor: | Marcelo Angelo Cirillo, Cleide Silveira Brasil Peixoto, Augusto Maciel da Silva |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
General Computer Science
Binomial (polynomial) General Mathematics General Engineering Negative binomial distribution General Physics and Astronomy Continuity correction Binomial test binomial families General Chemistry simulation Normal distribution Binomial distribution probability of coverage Probabilidade e Estatística lcsh:TA1-2040 Statistics General Earth and Planetary Sciences Multinomial distribution Binomial proportion confidence interval lcsh:Engineering (General). Civil engineering (General) lcsh:Science (General) lcsh:Q1-390 Mathematics |
| Zdroj: | Acta Scientiarum. Technology; Vol 37 No 1 (2015); 47-54 Acta Scientiarum. Technology; v. 37 n. 1 (2015); 47-54 Acta scientiarum. Technology Universidade Estadual de Maringá (UEM) instacron:UEM Acta Scientiarum: Technology, Vol 37, Iss 1, Pp 47-54 (2015) |
| ISSN: | 1806-2563 1807-8664 |
| Popis: | The Wald method is grounded on a statistic based on the asymptotic approximation of normal distribution. The method has shown incoherent values at a nominal level of confidence for the probability of coverage in intervallic estimates, mainly in small samples, noticeable in linear functions formed by binomial proportions. Current analysis improves this method used in inferring from binomial linear functions, taking into consideration zero-inflated samples. Improvement was assessed byMonte Carlosimulation techniques within different scenarios. Results show that the improvement proposed is recommended in situations in which sampling proportions are close to 0,5 and produce a maximum variance of the binomial proportions involved in the composition of the linear function. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|