Department Of Social Sciences
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Browsing Department Of Social Sciences by Author "Mbata, U.A"
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- ItemOpen AccessMultivariate Generalized Poisson Distribution for Interference on Selected Non-Communicable Diseases in Lagos State, Nigeria(Journal of Modern Applied Statistical Methods, 2012) Adewara, J.A.; Mbata, U.AMultivariate Generalized Poisson Distribution (MGPD) models are applied to make inferences regarding non-communicable diseases, diabetes, hypertension, stroke and ulcer in Lagos State, Nigeria. The generalized Poisson distribution is employed due to its usefulness in modeling count data in the presence of either over- or under- dispersion. Results show that the correlation between ulcer and stroke is not significant. Other pairwise comparisons of diseases are significant, thus implying that a patient who suffers from diabetes or stroke has a high propensity to also be hypertensive
- ItemOpen AccessSurvival Estimation Using Bootstrap, Jackknife and K-Repeated Jackknife Methods(Journal of Modern Applied Statistical Methods, 2015-11) Adewara, J.A.; Mbata, U.AThree re-sampling techniques are used to estimate the survival probabilities from an exponential life-time distribution. The aim is to employ a technique to obtain a parameter estimate for a two-parameter exponential distribution. The re-sampling methods considered are: Bootstrap estimation method (BE), Jackknife estimation method (JE) and the k-repeated Jackknife estimation method (KJE). The methods were computed to obtain the mean square error (MSE) and mean percentage error (MPE) based on simulated data. The estimates of the two-parameter exponential distribution were substituted to estimate survival probabilities. Results show that the MSE value is reduced when the K–repeated jackknife method is used.