Suppose we conduct a study on whether hand stamps at a water park affect behavior. As patrons enter a water park, they are randomly assigned to receive one of the following hand stamps: 1. "Processed Foods Kill" 2. "Eating Healthy Saves Lives" 3. Smiley face 4. No stamp At the exit of the water park, there is a table where people can buy organic produce vouchers at a greatly reduced price (these vouchers will allow patrons to receive one week's worth of organic produce delivered to their door). We are interested in seeing if the type of hand stamp affects how many vouchers patrons buy. It was hypothesized that a fear message ("Processed Foods Kill") would be more effective in persuading people to buy vouchers than a non-fear message ("Eating Healthy Saves Lives"). Both the "Processed Foods Kill" and "Eating Healthy Saves Lives" stamps should be more effective in persuading people to buy vouchers than an unrelated stamp (smiley face) or no stamp at all. We obtain the following data: "Processed Foods Kill" (n = 5) Person #1 bought 1 vouchers Person #2 bought 5 vouchers Person #3 bought 6 vouchers Person #4 bought 5 vouchers Person #5 bought 3 vouchers "Eating Healthy Saves Lives" (n = 5) Person #1 bought 4 vouchers Person #2 bought 2 vouchers Person #3 bought 3 vouchers Person #4 bought 1 vouchers Person #5 bought 3 vouchers Smiley face (n = 5) Person #1 bought 2 vouchers Person #2 bought 1 vouchers Person #3 bought 1 vouchers Person #4 bought 2 vouchers Person #5 bought 3 vouchers No stamp (n = 5) Person #1 bought 1 vouchers Person #2 bought 3 vouchers Person #3 bought 1 vouchers Person #4 bought 1 vouchers Person #5 bought 2 vouchers