Describe a scene in which the juror(s) exhibited persuasion. What was the main content of that scene?

Juror number 8 attempts to persuade the others that the old man could not have clearly heard the boy shout "I'm going to kill you" eight explains his doubt about the testimony of the old man about being able to hear the boy yell "I'm going to kill you" while the el train was going past the window. Juror 8 explains that the el train is loud and lasts too long for the old man's testimony to be valid.