(1 point) The distribution of scores on a standardized test is approximately Normal with standard deviation of o = 13. If a sample of 100 students had a mean score of = 76.3, use this to find a 99% confidence interval for the mean score of all students on this test. We are 99% confident that the the mean score of students on this test was in the interval to What is the margin of error for your confidence interval? Margin of error =