Did Portuguese dubbing lift views in Brazil? Choosing the test with 24 videos
Test selectionHardProblem. Over the past year, 12 main-channel videos had a Portuguese audio track available at upload, and 12 didn't (for production reasons). A colleague compares Brazil views between the two groups with a t-test and finds nothing significant. Views per video range from 2 million to 20 million in Brazil. Is the t-test the right choice?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.