A Teacher Wants to Know If Her Students Score Better

Multiple Choice

A teacher wants to know if her students score better on a standardized test than the nationwide average. What would be an appropriate null hypothesis if she applied the one-sample test?

A) Students in her class do at least 1.5 times as well as the national average.
B) Students in her class do no better than the national average.
C) Students in her class fall short of the national average.
D) Students in her class do either better or worse than the national average.