Archive:: American Journal of Theoretical and Applied Statistics:: Science Publishing Group

Volume 11, Issue 2, March 2022

Classical Approach to Zero-Inflated Dynamic Panel Ordered Probit Model with an Application in Drug Abuse

John Kung’u, Leo Odongo, Ananda Kube

Issue: Volume 11, Issue 2, March 2022

Pages: 58-74

Received: 20 January 2022

Accepted: 4 March 2022

Published: 12 March 2022

DOI: 10.11648/j.ajtas.20221102.11

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Abstract: The Zero inflated ordered categorical data with time series structure are often a characteristic of behavioral research attributed to non-participation decision and zero consumption of substance such as drugs among the participants. The existing Semi-parametric zero inflated dynamic panel probit model with selectivity have exhibited biasness and in... Show More

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Estimation of Finite Population Mean Using Ratio Estimator Based on Known Median of Auxiliary Variable in the Presence of Non-Response

Charles Wanyingi Nderitu, Herbert Imboga, Anthony Wanjoya

Issue: Volume 11, Issue 2, March 2022

Pages: 75-82

Received: 11 March 2022

Accepted: 1 April 2022

Published: 8 April 2022

DOI: 10.11648/j.ajtas.20221102.12

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Abstract: The issue of non-response is a common phenomenon in sample surveys. Therefore, there is a need to develop ways of dealing with the challenge whenever it occurs. The current paper first introduces the stratification of the population as a result of the non-response. A theoretical review of the basic non response in sampling is as well explained and ... Show More

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