Answer Happy

An instructor wants to study the use of polling in the classroom. For which of the following scenarios would a two-sample t-test (.e., independent samples t-test) be appropriate? The instructor wants to to determine if first-year students have different opinions on polling than seniors. They ask first-year students and seniors if they like using polling, or not The instructor would like to determine if first-year students' scores in polling questions is significantly different than seniors' scores. Students answers in polling questions are registered and graded for each student. The instructor keeps a record of these grades, and would like to know if students achieve a mean grade of at least 75% on their polling answers. The instructor asks students if they like using polling in the classroom or not, and they want to see if a majority if students like this learning method