Intro to Stats: Videos & Practice Problems

A smoking-cessation trial randomized participants and recorded time (in days) to first relapse among those who relapsed. Among the $40$ participants in the intervention arm who relapsed, the median time to relapse was reported as $12$ days; among the $52$ relapsers in the control arm the median was reported as $20$ days. Are the reported medians statistics or parameters? Explain briefly.