Dpto. Estadistica e I.O. Facultad de Matemáticas , Universidad de Sevilla , C/ Tarfia s/n, Sevilla, 41012, (Spain)
Abstract:
In this paper we study certain properties of estimable and UMUV-estimable functions in a subfamily of the one-parameter exponential family of distributions for which there exists a sufficient and complete statistic following a Gamma distribution. These results are applied to the problem of estimation in the transformed chi-square family.