Answer the following questions pleaseSolutionAnswer to quest

Answer the following questions please

Solution

Answer to question 9:

It is a volunteer sample, because students volunteer themselves to rate their professors on that webpage.

Answer to question 10:

The answer is the second option, randomly assign participants to conditions of the study. The instructor should allow the students to freely to express their emotions and not to influence them because it means the instructor is putting some noise on the results of the study, which in turn, would noty reveal the truth that is being looked for.