Maximal co-ancillarity and maximal co-sufficiency


Event details

Date 14.06.2024
Hour 15:1516:15
Speaker Heather Battey, Imperial College London    
Category Conferences - Seminars
Event Language English

This will be an expository talk, rather than a research talk. The purpose is to provide some alternative perspectives on conditional inference through a notional idealised separation within the minimal sufficient statistic, allowing a geometric account of key ideas from the Fisherian position on conditional inference. The notional idealised separation, in terms an ancillary statistic and what I call a maximal co-ancillary statistic, provides insight and clarifies what is sought from an approximate conditional analysis, where exact calculations may not be available.
A parallel framework applies in the Fisherian assessment of model adequacy.
Both aspects will be discussed and illustrated geometrically through examples.



Practical information

  • Informed public
  • Free


  • Victor Panaretos


  • Maroussia Schaffner