In problem 13 in Chapter 9, we presented a study examining the spotlight effect, which refers to overestimating the extent to which others notice your appearance or behavior, especially when you commit a social faux pas. Effectively, you feel as if you are suddenly standing in a spotlight with everyone looking. Gilovich, Medvec, and Savitsky (2000)

asked college students to put on a Barry Manilow T-shirt that fellow students had previously judged to be embarrassing. The participants were then led into a room in which other students were already participating in an experiment. Later, each participant was asked to estimate how many people in the room had noticed the shirt and the individuals in the room were also asked whether they noticed the shirt. If 15 out of 20 participants overestimated the number who noticed the shirt, is this enough to be significantly more than chance? Use a two-tailed test with α = .05.