Question: 5 . ) In 2001 , the Gallup poll found that 819 of American adults believed that there was a conspiracy in the death of

5 . ) In 2001 , the Gallup poll found that 819 of American adults believed that there was a conspiracy in the death of President Kennedy . In 2013 , the Gallup poll asked 1 039 American adults if they believe there was a conspiracy in the assassination , and found that 634 believe there was a conspiracy ( " Gallup news service , " 2013 ) . Do the data show that the proportion of Americans who believe in this conspiracy has decreased ? Test at the 19 / level

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