1. A medical device company would like medical professionals to test out its new equipment to aid in performing surgery. While the firm has a network of doctors that it typically goes to this device relates to a specific subspeciality gastroenterology; as a result, the medical device company needs to solicit more gastroenterologists to consider testing the equipment. For each respondent the medical device company finds, it asks that person to make referrals to other gastroenterologists in his or her network to aid in the study. What sample design is used?

Sampling Design:

Advantages:

Disadvantages:

2. Wendys is testing a new product made with Beyond Meat. It wants to solicit 100 vegan individuals between its target demographic of 24-45 to try the product and offer feedback. Once 100 people have volunteered for the study, it will then be closed. What sample design is used?

Sampling Design:

Advantages:

Disadvantages:

3. Sean Sputnik wants feedback on the University of Tulsa student experience, so he sits on a bench in the Student Union and asks people as they walk past to participate in his study. While the Student Union is a public space, and its filled with both students and non-students he feels he can eyeball students and come to the right conclusion of who should be offered to participate. What sample design is used?

Sampling Design:

Advantages:

Disadvantages: