In a small survey , a researcher asked 17 individuals if they received a flu shot this year , and whether they caught the flu this winter . The reults indicate that, of the nine people who did not receivea flu shot , three got the flu and six did not . Of the eight people who received a flu shot , one got the flu and seven did not . Use fisher's exact test to determine if there is a nonrandom assoiation between receiving a flu shot and getting the flu.