The dean randomly selected 39 students who took the calculus final exam and looked at their scores on it. In this sample the mean was 76.6 and the standard deviation was 9.8. No information about the population's distribution is available. Construct a 9% confidence interval for the mean score of all students who took this exam. Round your answers to 2 places after the decimal point, if necessary. If it is not appropriate to construct a confidence interval in this situation, then enter "0" in both answer boxes below. 99% confidence interval: Submit