Question
At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of
At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? What is the appropriate Null Hypothesis (H0) for this problem? Group of answer choices Mu <= 1335 Mu = 1300 Mu <= 1300 Mu = 1335 Mu >= 1300 Mu >= 1335 Question 2 At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? What is the appropriate Alternative Hypothesis (Ha) for this problem? Group of answer choices Mu < 1300 Mu is not = 1335 Mu < 1335 Mu > 1300 Mu > 1335 Mu is not = 1300 Question 3 At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? What does the parameter Mu represent in this Hypothesis Test? Group of answer choices "Population Mean SAT Score" for all Freshman Applicants at this university for the upcoming next year admission cycle "Mean SAT Score for the sample of 100 Freshman Applicants" who have applied to this university for the upcoming next year admission cycle "Historical Population Mean SAT Score" for Freshman Applicants who applied to this university Question 4 At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? Given the problem description, what is the appropriate Hypothesis Test for this problem? Group of answer choices t test F test Chi-Square test Z test None of the other answers listed here are correct Question 5 At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? What kind of Hypothesis Test is this one? Group of answer choices One-tailed (upper-tail) test One-tailed (lower-tail) test None of the other answers listed here are correct Two-tailed test Question 6 At a university historical data shows mean SAT scores for freshman applicants to be 1300. Based on Subject Matter Experts' input, population standard deviation of SAT scores can be assumed to be 100. For the upcoming next year admission cycle, a sample of 100 applicants recorded a mean SAT score of 1335. Is there evidence at 97% confidence level to claim that the mean SAT score for freshman applicants has changed from the historical mean? At what level-of significance should this Hypothesis Test be conducted? Group of answer choices 0.05 0.015 0.03 0.485 0.97
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