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Bootstrap Pearson test for difference in discrete distributions

Nikolova, N ORCID: 0000-0001-6160-6282, Crees-Morris, M, Tsonev, Y and Tenekedjiev, K ORCID: 0000-0003-3549-0671 2020 , 'Bootstrap Pearson test for difference in discrete distributions', in Proceedings of the IEEE International Conference on Automatics and Informatics (ICAI) , Institute of Electrical and Electronics Engineers .

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Abstract

one-dimensional discrete random variable X describes two populations. A random sample is drawn from each. We formalize a generic statistical test to determine whether the samples provide enough evidence that the distributions of X in the two populations are different. After showing the drawbacks of the existing analytical tests, we develop a Bootstrap procedure with Pearson test statistic calculated from a contingency table. The p-value is estimated using the simulated conditional distribution of the test statistics under null hypothesis for equality of population distributions. Compared to analytical tests, our procedure gives higher precision and decreases uncertainty in both small and big samples. We apply our procedure to survey data on leadership capabilities in academia among two samples of respondents. We take one question from the survey and analyse significance of differences in the responses depending on three criteria.

Item Type: Conference Publication
Authors/Creators:Nikolova, N and Crees-Morris, M and Tsonev, Y and Tenekedjiev, K
Keywords: simulations, contingency table, leadership skills
Journal or Publication Title: Proceedings of the IEEE International Conference on Automatics and Informatics (ICAI)
Publisher: Institute of Electrical and Electronics Engineers
Copyright Information:

Copyright 2020 IEEE

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