s 8 - 10 are based on the following scenario. A health psychologist is interested in the effectiveness of a new exercise on the rate of heart attacks because the exercise requires no equipment and, therefore, can be done without cost. 8. What is the research hypothesis? A) People will participate because it does not cost them any money. B) The exercise will make a 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. 9. What is the null hypothesis? A) People will not 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 make no difference or will reduce the rate of heart attacks. D) The exercise will make no difference or will increase the rate of heart attacks. 10. What is the comparison distribution? A) the distribution of people who participate in the exercise program B) the distribution of people who do not participate in the exercise program C) the distribution of people who have heart attacks D) the distribution of people who do