please solve this

4. Let X be a continuous random variable. Suppose we take a random sample of X of size n = 8 and we find that our values from the sample, in order, are 7.12, 8.31, 8.47, 9.04, 10.72, 10.98, 11.36, 13.21. (a) Compute the confidence coefficient of (9.04, 13.21) as a confidence interval for 93, the third quartile of X. Note: you may leave your final answer as an unsimplified sum.(b) Let (1 - a) be the confidence coefficient you computed in part (a). Consider the statement "there is a 100(1 - a) % chance that q3 is in (9.04, 13.21)." Is the statement accurate? Explain your