Document Type

Conference Paper

Publication Date


Publication Details

Best, John; Rayner, John; and Thas, Olivier, Smooth Tests of Fit for a Mixture of Two Poisson Distributions, " Proceedings of the Fourth Annual ASEARC Conference, 17-18 February 2011, University of Western Sydney, Paramatta, Australia.


In this note smooth tests of fit for a mixture of two Poisson distributions are derived and compared with a traditional Pearson chi-squared test. The tests are illustrated with a classic data set of deaths per day of women over 80 as recorded in the London Times for the years 1910 to 1912.