Christina is interested in studying whether the number of hours of sleep a person has is related to their problem-solving ability. She gathers a random sample and measures how long it takes for them to complete a problem-solving task (in minutes). She also asks them to report the number of hours of sleep they had the night prior. Her data is summarized in the table below:

Participants Time to Complete Problem Number of hours of sleep Solving Task (m) 5.1 8.6 6.8 6.4 4.2 9.2 7.2 5.1 D DO J O UI A W NH 5 7.7 6.2 8 6.7 8.1 4.4 9.3 7 8.1 10 8.4 4.3