[Solution Library] Suppose you administer a certain aptitude test to a random sample of 9 students in your high school, and the average score is 105. We
Question: Suppose you administer a certain aptitude test to a random sample of 9 students in your high school, and the average score is 105. We want to determine the mean μ of the population of all students in the school. Assume a standard deviation of σ = 15 for the test. Round all answers to 2 decimals.
Write a few sentences explaining what would happen to the size of the CI if you changed the sample size to be 81 and kept a 98% confidence interval.
Deliverable: Word Document 