An Experiment Done at a Horsetrack Measured Bettors' Confidence That

Multiple Choice

An experiment done at a horsetrack measured bettors' confidence that their horse would win. Half of the bettors were approached immediately before laying down their bets and the other half were approached immediately after. What was found?

A) Those approached after their bets were significantly more confident than those approached before.
B) Those approached before their bets were significantly more confident than those approached after.
C) Both groups were equally confident.
D) None of the above.