Question

63 subjects partake in a research experiment on taste stimulation, to determine if they favor a certain stimuli candy (caramel). The researchers first carry out a questionnaire "before" the subjects taste the stimuli candy (caramel), and then the researchers carry out an "after" questionnaire once the subjects taste the stimuli candy (caramel). The researchers ask on each questionnaire that the subjects answer YES, NO, or UNCERTAIN to whether or not the subjects favor the stimuli candy (caramel). (There were no subjects on the before questionnaire to answer UNCERTIAN to whether or not the