A bakery makes apple pies with Golden Delicious apples. To save money, they would like to start using Red Delicious apples in their pies but want to test whether the change in the type of apple makes a difference in the taste of the pies. They ask a random sample of their customers in one day to taste test both pies. The customers do not know which pie contains which type of apple. What is the most accurate description of this study? single-blind experiment
double-blind experiment
observation
experiment