1. Department of Statistics, Padelford Hall B-313, University of Washington, Seattle, WA 98195, USA.
2. School of Social Work, 4101 15th Avenue NE, University of Washington, Seattle, WA 98195, USA.
3. Center for Statistics and the Social Sciences, Padelford Hall C-14 University of Washington, Seattle, WA 98195, USA.
4. Laboratoire J. A. Dieudonné, Université Côte d’Azur, CNRS, Nice, France.
5. Center for Scientific Review, National Institutes of Health, 6701 Rockledge Drive, Bethesda, MD 20817, USA.
6. Retired volunteer at Center for Scientific Review, National Institutes of Health, 6701 Rockledge Drive, Bethesda, MD 20817, USA.
7. Department of Philosophy, Savery Hall 361, University of Washington, Seattle, WA 98195, USA.