An experimenter planned a study in which a crucial step was offering participants a food reward, and having three food rewards that were equal in appeal was important. Thus, participants in a pre-study were asked which of three rewards they preferred. Of the 60 participants, 19 preferred cupcakes, 30 preferred candy bars, and 11 favored dried apricots. Using the .01 significance level. Do the results suggest that people differentially prefer different foods in general?