In a blind taste test, 45 coffee drinkers sampled fresh brewed coffee versus a gourmet instant coffee. When stating their preferences, 14 chose the instant, 26 chose the fresh brewed, and 5 gave no preference. Note that in the helium vs. air football example there were two trials where no difference was measured. We ignored that detail there (and it doesn't really affect the overall conclusion in that case.)
a) In what situations will the way we deal with 'no difference' or 'no response' matter most? Explain.
b) What options can you think of for how to deal with this?
c) What should we do with those who had no preference here?
d) Test the claim that coffee drinkers tend to prefer fresh brewed coffee.