For the Following Question(s): a Researcher Is Interested in a New

Multiple Choice

For the following question(s) : A researcher is interested in a new kind of exercise. This new exercise can be done by anyone because it does not require any equipment, and therefore could be potentially beneficial without cost to the person. The researcher is interested in whether this new exercise will reduce the rate of heart attacks in the people who participate in doing it.
-What is the null hypothesis?

A) People will participate because it does not cost them any money.
B) The exercise will make no difference in the rate of heart attacks.
C) The exercise will reduce the rate of heart attacks.
D) The exercise will increase the rate of heart attacks.