Exercise 5.5 During flu season, the administrators at a walk-in health clinic want to determine if providing patients with a pamphlet will increase their receptivity to flu shots. Once escorted to the exam room, patients who had odd-numbered service tickets were given a flu shot information pamphlet; patients with even-numbered tickets were given nothing. At the end of the day, patients’ charts were reviewed, and two entries were made in the database: total number of flu shots given to patients who received pamphlets and total number of flu shots given to patients who were not given flu shot pamphlets.