A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 111, and the sample standard deviation, s, is found to be 11. (a) Construct a 95% confidence interval about p if the sample size, n, is 26. (b) Construct a 95% confidence interval about p if the sample size, n, is 14. (c) Construct a 90% confidence interval about p if the sample size, n, is 26. (d) Should the confidence intervals in parts (a)-(c) have been computed if the population had not been normally distributed? . . . (a) Construct a 95% confidence interval about u if the sample size, n, is 26. Lower bound: ; Upper bound: (Round to one decimal place as needed.)