Researchers wonder if blue light exposure impacts people's ability to fall asleep. Researchers get a group of 7 people and measure how long it takes them to get to sleep each night after exposure to 10 min. of blue light, 30 min. of blue light, and 60 min. of blue light. Data for each participant can be seen below and represent the participants' number of min. it takes to fall asleep each night. Did people take longer to get to sleep as their blue light exposure increased? Test at = .05. Participant 10 min. 30 min. 60 min. 1 12 12 13 2 13 13 14 3 12 14 14 4 14 13 14 5 13 14 15 6 12 13 14 7 11 12 13 What is the most appropriate test statistic