a social psychologist reports that "in our sample, ethnocentrism was significantly higher (p < 0.05) among church attendees than among nonattendees." this means a. ethnocentrism was at least 5% higher among church attendees than among nonattendees. b. the observed differences between church attendees and nonattendees account for all but 5% of those sampled. these results are quite meaningful and should be investigated further. c. if there is actually no difference in ethnocentrism between church attendees and nonattendees, the chance that we would observe a difference