Part 4 of 6 O Points: 0 of 4 A simple random sample of size n is drawn. The sample mean, x, is found to be 19.1, and the sample standard deviation, s, is found to be 4.1. Click the icon to view the table of areas under the t-distribution. OB. The margin of error does not change. C. The margin of error decreases. (c) Construct a 99% confidence interval about u if the sample size, n, is 34 Lower bound: ;Upper bound: (Use ascending order. Round to two decimal places as needed.)