Which of the following represents a null hypothesis regarding differences in SAT score by identity status?
A) There are no differences in SAT scores among students of different race and ethnicities.
B) Hispanic students score lower than any other students on the SAT.
C) Hispanic students score higher than any other students on the SAT.
D) There are significant differences in SAT among students of different race and ethnicities.

Question

Quizplus · Accepted Answer

A null hypothesis is a statement that there is no significant difference between two or more groups being compared. Option A represents a null hypothesis by stating that there are no differences in SAT scores among students of different race and ethnicities. The other options are not null hypotheses because they either make specific alternative claims or simply state the existence of differences without a comparison.

Which of the Following Represents a Null Hypothesis Regarding Differences