Help with this please!!! Question complete. Kindly answer a through d

9.2.17 Question Help A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 107, and the sample standard deviation, s, is found to be 10. (a) Construct an 80% confidence interval about u if the sample size, n, is 11. (b) Construct an 80% confidence interval about u if the sample size, n, is 16. (c) Construct a 90% confidence interval about u if the sample size, n, is 11 (d) Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed? Click the icon to view the table of areas under the t-distribution. (a) Construct an 80% confidence interval about p if the sample size, n, is 11. Lower bound: Upper bound: (Use ascending order. Round to one decimal place as needed.)