Hint 1
Hint 2
The fact that the p-value = .002 means that:
There is .002 probability of observing data like those observed.
There is .002 probability that 50% of U.S. adults oppose gay marriage.
There is a probability of .002 (i.e., very unlikely) to observe data like those observed if the proportion of U.S. adults who oppose gay marriage were 50%.
There is .998 probability that the majority of U.S. adults oppose gay marriage.
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