Which of the following is a two-tailed hypothesis?
A) Left and right handers will differ in their mathematical ability
B) Left handers will do better than right handers on a test of mathematical ability
C) Left handers will do worse than right handers on a test of mathematical ability
D) Left handers and right handers will not differ in their performance on a test of mathematical ability

Question

Quizplus · Accepted Answer

A two-tailed hypothesis predicts that there will be a difference between groups but does not specify the direction of the difference. Option A states that left and right handers will differ in their mathematical ability, without specifying which group will perform better or worse.

Which of the Following Is a Two-Tailed Hypothesis