1. Department of Statistical Science, Cornell University, 301 Malott Hall, Ithaca, NY 14853 ()
2. Department of Statistical Science and ILR School, Cornell University, 1196 Comstock Hall, Ithaca, NY 14853 (; webpage: )
3. Andrew Schultz, Jr. Professor of Engineering, Department of Statistical Science, and School of Operations Research and Information Engineering, Cornell University, 1170 Comstock Hall, Ithaca, NY 14853 (; webpage: )