In the early 1980s, Coca-Cola spent millions of dollars on taste tests and interviews with consumers to test a new flavour of Coke."The data was unequivocal: Consumers preferred the new formula 8% more than Pepsi and an astonishing 20% more than the original Coca-Cola recipe."
Despite this, when the New Coke was launched, it was a disaster, because people were very loyal to the original Coke. Describe a question that researchers could have asked that would have indicated this potential problem.