The final scores of games of a certain sport were compared against the final point spreads established by odds makers. The difference between the game outcome and point spread (called a point-spread error) was calculated for 255 games. The mean error is x= - 1.7. The population standard deviation of the point-spread error = 11.3. Use this information to test the hypothesis that the true mean point-spread error for all games differs from 0. Conduct the test at a= 0.01 and interpret the result. Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho HO =0 OB. Ho Ho =0 Ha: Ho # 0 Ha: Ho > 0 O C. Ho Ho #0 OD. HO HO 20 Ha : Ho = 0 Ha : Ho * 0 The test statistic Z= (Round to two decimal places as needed.) The p-value = (Round to three decimal places as needed. ) What is the appropriate conclusion at a = 0.01? O A. Do not reject Ho. There is insufficient evidence to conclude that the true mean point-spread error for all games differs from 0. O B. Do not reject Ho. There is sufficient evidence to conclude that the sample mean point-spread error for all games differs from 0. O C. Reject Ho. There is insufficient evidence to conclude that the sample mean point-spread error for all games differs from 0. O D. Reject Ho. There is sufficient evidence to conclude that the true mean point-spread error for all games differs from 0