2 a Design and carry out an experimental taste test for two or three cola beverages (you could use Coke, Coca-Cola Classic, and Pepsi-Cola, for example). There are numerous colas on the market any of them could be used in this experiment. Run two separate taste tests. In one, let the subjects know which cola they are drink- ing Let them see the container while you pour from it, then ask them which taste they prefer. If three colas are used, have them rank order the data 1-2-3) The other test should be "blind" Pour the beverages from behind a screen so the subjects don't know which colas they are tasting. Then have them rank the soft drinks. Identity clearly. Test units Dependent variable(s) Independent variable(s) Treatments Possible sources of extraneous variation on the dependent variable Ways to control these extraneous variables Timing of the measurements taken Selection of test units Assignment of test units to treatments b Suppose the results of your taste test are to be used in a national advertising campaign How would you change your design to account for this? (Be aware that your experiment results could be challenged in court by the competition!