Journal of the Korean Data and Information Science Society
- Volume 15 Issue 2
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- Pages.387-394
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- 2004
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- 1598-9402(pISSN)
Tests for the Change-Point in the Zero-Inflated Poisson Distribution
Abstract
Zero-Inflated Poisson distribution is Poisson distribution with excess zeros. Recently defects of product hardley happen in the manufacturing process. In this case it is desirable to apply to the Zero-Inflated Poisson distribution rather than Poisson. Our target of this paper is to study the tests for changes of rate of defects after the unknown change-point. We are going to compare the powers of the two proposed tests with likelihood tests by the simulations.