A researcher developed a scale to measure sensation seeking, which has been widely used in a variety of types of research, including drug prevention. Individuals who are high in sensation seeking appear to be easily bored and have a high need to participate in new and sometimes risky activities. Higher scores on this scale mean a higher need for sensation seeking. A school psychologist wants to test whether there is a relationship between sensation seeking and antisocial behavior. Using a sample of 27 high school students, the psychologist obtains a correlation of r = 0.42 between sensation seeking scores and antisocial behavior. Use an alpha of 0.01 to answer the following questions:
What is the appropriate mathematical research hypothesis?
A. r = 0
B. rho = 0
C. rho > 0
D. rho ≠ 0