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Survey of New Cola

APSTAT-TEN1HF

Soft drink manufacturers want to introduce a new flavor of spicy cola to compete with the leading brand of cola.

They went to a local shopping mall and administered a blind taste test that included the new spicy cola and the leading cola brand.

They surveyed $100$ subjects, and gave each of them an unmarked cup of each cola, in randomized order. The researchers found that $56$ liked the new cola better.

This is an example of

A

A voluntary response survey.

B

A double-blind experiment.

C

An observational study.

D

A blocking experiment, where cola type is a block.

E

A single-blind experiment.