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 225 games. The mean error is x= - 1.4. The population standard deviation of the point-spread error o= 12.5. Use this informat 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. OA. HO: Ho # 0 OB. 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 sufficient evidence to conclude that the sample mean point-spread error for all games differs from 0. O B. Reject Ho. There is insufficient evidence to conclude that the sample mean point-spread error for all games differs from 0. O C. Reject Ho. There is sufficient evidence to conclude that the true mean point-spread error for all games differs from 0 O D. Do not reject Ho. There is insufficient evidence to conclude that the true mean point-spread error for all games differs from 0