Which of the following is a one-tailed hypothesis?
A)There will be a difference between smokers and non-smokers in breathlessness
B)There will be a relationship between numbers of cigarettes smoked and degree of breathlessness
C)As the number of cigarettes smoked increases, then so will rating of breathlessness
D)None of the above

Question

Quizplus · Accepted Answer

A one-tailed hypothesis predicts the direction of the effect, such as stating that one variable will increase or decrease as another variable does. Option C specifically predicts that as the number of cigarettes smoked increases, the rating of breathlessness will also increase, indicating a directional hypothesis.

Which of the Following Is a One-Tailed Hypothesis