A coffee enthusiast would like to test whether the coffee preference of young consumers living in Brooklyn is affected by the perceived brand. He recruits 18 volunteers and divides them into 3 groups: one group gets coffee in a Starbucks cup, another group gets coffee in a McDonalds cup, and a third group gets coffee in a cup labeled "new Fair-Trade Organic no GMO Rainforest" coffee. The catch is that everyone receives the same brewed coffee. The participants are asked to drink as much coffee as they can tolerate out of an 8oz serving. Below is the number of ounces consumed by each of the 18 people. Test the hypothesis that perceived brand affects preference for coffee (use alpha = .05).

Mcdonalds Starbucks NFTONGMOR 1 8 5 7 LU 1 1 2 4