Instructor-created question Question Help A random sample of n measurements was selected from a population with unknown mean u and standard deviation o = 35 for each of the situations in parts a through d. Calculate a 99% confidence interval for u for each of these situations. a. n = 75, x=32 b. n = 200, x = 108 c. n = 90, x = 16 d. n = 90, x = 5.05 a. ( (Round to two decimal places as needed.) (Round to two decimal places as needed.) c. (0) (Round to two decimal places as needed.) d. (0.0) (Round to two decimal places as needed.) e. Since we are given o = 35 we should use the standard normal distribution to get the critical value here. TRUE or FALSE? O True O False