work - Eler X Score: 0.22 0f 1 pt 4 of 9 (4 complete) er 9.2-Hon X 9.2.19 A simple random sample of size n is drawn. The sample mean, x. is found to be 18.1. and the sample standard deviation, s, is found to be 4.8. Ctrl+T Click the icon to view the table of areas under the t-distribution. (a) Construct a 95% confidence interval about p if the sample size, n, is 34. Lower bound: 16.45 : Upper bound: 19.75 (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% confidence interval about p if the sample is 61. Lower bound: 10.87 : Upper bound: 19.33 (Use ascending order. Round to two decimal places as needed.) How does increasing the sample size affect the margin of error, E? O A. The margin of error does not change. B. The margin of error decreases. O C. The margin of error increases. (c) Construct a 90% confidence interval about p if the sample size, n, is 34. Lower bound: : Upper bound: (Use ascending order. Round to two decimal places as needed.)