Homework UNIT 7 - Section 10.3 Homework Question 8, 10.3.37 HW Score: 22.22%, 2 of 9 points Sa Score: 0 of 1 The head of institutional research at a university believed that the mean age of full-time students was declining In 1995, the mean age of a full-time student was known to be 27 4 years. After looking at the enrollment records of all 4934 full-time stu the current semester, he found that the mean age was 27 1 years, with a standard deviation of 7 3 years. He conducted a hypothesis of Ho u = 27 4 years versus H, u * 27 4 years and obtained a P-value of 0 0020. He concluded that the mean age full-time students did decline, Is there anything wrong with his research? Choose the correct answer below A. Yes, the head of institutional research stated the hypotheses incorrectly, a left-tailed hypothesis test was conducted instead of a two-tailed test. B. Yes, a P-value only indicates the likelihood of getting a result as extreme or more extreme as the one found, the head of institutional research needs to include a confidence level C. Yes, the head of institutional research has access to the entire population, Inference is unnecessary. He can say with 100% confidence that the mean age has decreased CD. No, the hypothesis test was conducted correctly, and the correct conclusion was made Click to select your answer and then click Check Answer Textbook StatCrunch Get More Help - Clear Al Type here to search O RI 1:32 PM