From the same scenario: Amari has calculated a 99% confidence interval to estimate the true mean wait time for patients in their clinic. From their sample of 400 patients, Amari found, x-bar= 11 minutes wait time with the sample standard deviation, s= 2.2 minutes. They calculated a margin of error of 0.2833 minutes. Find the confidence interval that Amari calculated. Write the upper bound of the confidence interval here