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.

Question

Quizplus · Accepted Answer

The null hypothesis for a one-sample test is typically that there is no difference between the sample mean and the population mean, which in this case is that the students do no better than the national average.

A Teacher Wants to Know If Her Students Score Better