Students distinguish no taste preference for Diet Coke or Diet Pepsi

Extract

[...] Interestingly, it was found that students chose either Diet Coke or Diet Pepsi at close to half and half out of their twelve trials. However the data also shows that students often times preferred the taste of Diet Pepsi to Diet Coke even though many more students claimed to like Diet Coke better than Diet Pepsi (11). A large number of students who claimed to have no preference in taste could have proven to be disadvantage of this experiment. Also carryover effects may have affected the subjects' pallets. [...]

[...] At the end the experimenter notes which drink the subject preferred in the first trial as well as how many times they chose Diet Coke as the preferred sip out of the twelve trials. Results Four separate statistical tests were utilized to analyze the data in this experiment. The first test was a two tailed, one sample z test, that was used to examine if the proportion of students who prefer Diet Coke is the same as what one would expect the proportion to be for the entire population, .5). [...]

[...] Students distinguish no taste preference for Diet Coke or Diet Pepsi Abstract This is a study of taste differential between two popular brands of soda, Diet Coke and Diet Pepsi. Subjects were given samples of Diet Coke and Diet Pepsi throughout a number of trials to see if they could distinguish the drinks by taste alone. Over the course of a twelve trial period, it became evident that students could not consistently choose which flavor they preferred over the other. [...]