{"id":331,"date":"2015-10-20T18:47:30","date_gmt":"2015-10-20T18:47:30","guid":{"rendered":"http:\/\/pages.charlotte.edu\/colloquium\/?p=331"},"modified":"2015-10-20T18:48:22","modified_gmt":"2015-10-20T18:48:22","slug":"friday-november-20th-at-1100am-in-fretwell-116","status":"publish","type":"post","link":"https:\/\/pages.charlotte.edu\/colloquium\/blog\/2015\/10\/20\/friday-november-20th-at-1100am-in-fretwell-116\/","title":{"rendered":"Friday November 20th, at 11:00AM in Fretwell 116"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td><a href=\"http:\/\/people.stat.sc.edu\/wang528\/index.html\">Dewei Wang<\/a>, Department of Statistics, University of South Carolina, Hosted by Yang\u00a0Li<\/td>\n<\/tr>\n<tr>\n<td>Title: Nonparametric goodness-of-fit tests for uniform stochastic\u00a0ordering<\/td>\n<\/tr>\n<tr>\n<td>Abstract:In this talk, I will introduce a new nonparametric procedure for testing against uniform stochastic ordering in a two-population setting.\u00a0Uniform stochastic ordering\u00a0is stronger than ordinary stochastic ordering but weaker than likelihood ratio ordering. Uniform stochastic ordering is satisfied when the\u00a0ordinal dominance curve associated with the two distributions is star-shaped. To develop a goodness-of-fit test for this property,\u00a0we construct test statistics by\u00a0examining the discrepancy between the empirical ordinal dominance curve and its the least star-shaped\u00a0majorant. We derive the limiting distribution of these statistics when uniform stochastic ordering is satisfied or not, and further we establish the least favorable distribution that can be used to determine the critical values. We illustrate the\u00a0performance of our testing procedure through simulation and by applying it to a caffeine study involving premature\u00a0infants conducted by Palmetto Health Richland in Columbia, SC.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dewei Wang, Department of Statistics, University of South Carolina, Hosted by Yang\u00a0Li Title: Nonparametric goodness-of-fit tests for uniform stochastic\u00a0ordering Abstract:In this talk, I will introduce a new nonparametric procedure for testing against uniform stochastic ordering in a two-population setting.\u00a0Uniform stochastic ordering\u00a0is stronger than ordinary stochastic ordering but weaker than likelihood ratio ordering. Uniform stochastic ordering [&hellip;]<\/p>\n","protected":false},"author":333,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-331","post","type-post","status-publish","format-standard","hentry","category-spring-2022"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p3kCtT-5l","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/users\/333"}],"replies":[{"embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/comments?post=331"}],"version-history":[{"count":2,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/331\/revisions"}],"predecessor-version":[{"id":333,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/331\/revisions\/333"}],"wp:attachment":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/media?parent=331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/categories?post=331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/tags?post=331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}