A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s2, is determined to be 19.8.

(a) Construct the 95% confidence interval for o2 if the sample size, n, is 10. Enter the lower bound here.

(b) Construct the 95% confidence interval for o2 if the sample size, n, is 10. Enter the upper bound here.