(10 pts) A study involving stress is done among the students on a college campus. Suppose the student stress score follows some unknown distribution with mean of 3.5 and standard deviation of 1.8 . 144 students are randomly selected for this study. Find the probability that the average stress score for the 144 students is more than 4.0. Before solving, you must state whether you should use sampling distribution of mean or Central Limit Theorem to solve this problem. Why or why not