2.Do SAT coaching classes work? Do they help students to improve their test scores? Four students were selected randomly from all of the students that completed an SAT coaching class. For each student, we recorded their first SAT score (before the class) and their second SAT score (after the coaching class). Studen 2 First SAT score 920 830 Second SAT score 1010 800 If we do not know which scores belong to which students, which test should we use to analyze these data? the one-sample t test the matched pairs t test the two-sample t test Any of the above is valid. It just needs to use the t distribution because o is unknown