A Teacher Wants to Determine If Students Who Use a New

Multiple Choice

A teacher wants to determine if students who use a new study method improve their performance. Which of the following would be the best example of a null hypothesis used to formally test this idea?

A) Students using the new study method do no better than the typical class average.
B) Students using the new study method do at least 3× better than other students in the course.
C) Students using the new study method do any amount better than other students in the course.
D) The odds of students using the new method improving their marks are at least 5 to 1.