The number of incoming students at two campuses of a midwestern university have historically been normally distributed. The main campus incoming class has a mean of 4,184 and a standard deviation of 400, and the regional campus incoming class has a mean of 690 and a standard deviation of 114. If there were 4,659 incoming students on the main campus and 805 on the regional campus, which had the more successful year in student recruitment based on z scores?

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?