Asimple random sample of size n is drawn. The sample mean, i, is found to be 19.2, and line sample standard deviation, s, is found to be 4.1. a Click the icon to View the table of areas under the tdistribution. (b) Construct a 95% confidence interval about u if the sample size, n, is 61. Lower bound: Upper bound: (Use ascending order. Round to two decimal places as needed.)