The researcher examines the relationship between hours of sleep and average test scores and reports an r=0.56, p=0.02. You know this means:
A) there is a statistically significant correlation between sleep and test scores.
B) as hours of sleep increase average test scores do as well.
C) there is a strong positive relationship between the variables.
D)All of these answers are correct

Question

Quizplus · Accepted Answer

The correlation coefficient (r) of 0.56 indicates a moderate positive relationship between hours of sleep and average test scores. The p-value of 0.02 indicates that this correlation is statistically significant, meaning that it is unlikely to have occurred by chance. Therefore, all of the answer choices are correct.

The Researcher Examines the Relationship Between Hours of Sleep and Average