Understanding stats [20 pts] Is sleep quality correlated with mental health? Researchers measured participants' average sleep quality over the past month as well as their responses on the Positive Mental Health Scale. Participants were rank ordered on both variables from highest to lowest sleep quality as well as highest to lowest mental health. Results found that participants who ranked low on sleep quality also ranked low on mental health. Are groups being compared (is there a nominal IV)? Explain how you know this. (2 pts) No, groups are not being compared in this study. IF NO How many variables are being examined? (1 pt) What scale of measurement are all of the variables? (if one is categorical and the other is not, then complete the YES section below.) Explain. (3 pts) What is the proper statistical test to be used to analyze the data? Explain the paths you took in the decision tree to get to this answer. (3 pts) IF YES What is the IV? How many levels does it have and what are they? (2 pts) Do participants experience all levels of the IV (within-subjects) or only one level (independent samples)? Explain. (2 pts) What is the scale of measurement of the DV? Explain. (2 pts) What is the proper statistical test to be used to analyze the data? Explain the paths you took in the decision tree to get to this answer. (3 pts)