Which of the following hypotheses is a two-tailed test?
A) Hamburger consumption differs among men and women
B) Men consume more hamburgers than women
C) Women are more concerned with the health consequences associated with eating hamburgers than are men
D) There is no difference in hamburger consumption among men and women
E) All of the above are two-tailed tests

Question

Quizplus · Accepted Answer

A two-tailed test is used when we are interested in determining whether there is a difference in either direction. Choice A is a two-tailed test because it is looking for any difference in hamburger consumption between men and women, without specifying a direction.

Which of the Following Hypotheses Is a Two-Tailed Test