Answer Happy

n A sports reporter suggests that professional baseball players must be, on average, older than professional football players, since football is a contact sport. Researchers selected 35 professional football players and 33 professional baseball players at random. The data collected are summarized by the accompanying table. Suppose the researchers decide to test the hypothesis. The degrees of freedom formula gives 57.05 df. Test the null hypothesis at a =0.01. Baseball 33 27.38 3.96 Football 35 25.04 2.78 у s Let Hy be the mean age of professional baseball players and let Hy be the mean age of professional football players. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho H1-H2 = 0 HA:H1-H270 O C. Ho: H1-H20 HA:H1 H2 = 0 OB. Ho: H1-H2 = 0 HA:H1-H2 < 0 OD. Ho: H1 - H2 = 0 HA:H1-H2> 0 Compute the test statistic. (Round to two decimal places as needed.) Find the P-value. The P-value is (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. O A. Reject the null hypothesis. There is sufficient evidence that professional baseball players are, on average, older than professional football players. OB. Fail to reject the null hypothesis. There is not sufficient evidence that professional baseball players are, on average, older than professional football players.