Journal of the Korean Data and Information Science Society
- 제15권2호
- /
- Pages.387-394
- /
- 2004
- /
- 1598-9402(pISSN)
Tests for the Change-Point in the Zero-Inflated Poisson Distribution
초록
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.