Chance to complete - Due to the rising cost of tuition, students, their parents, and government agencies that distribute

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Chance To Complete Due To The Rising Cost Of Tuition Students Their Parents And Government Agencies That Distribute 1 (45.04 KiB) Viewed 100 times

Chance to complete - Due to the rising cost of tuition, students, their parents, and government agencies that distribute financial aid are interested in the completion rate of a university. The completion rate is defined to be the percentage of students who complete a 4-year degree within 6 years. Carly is working on a news article that compares this rate across institutions. She obtains a random sample of 52 private, 4-year colleges and universities in the United States found that the mean rate for students who complete a degree in 4 years is 0.609 with a standard deviation of 0.211. 1. Calculate a 90% confidence interval for the actual mean completion rate for private, 4-year colleges and universities in the United States. Give your answer to 4 decimal places. Carly calculated a 95% confidence interval for the mean number of students at public 4-year universities to be (18300, 20760) using a random sample of size n = 50. Calculate the sample mean, the margin of error, and the sample standard deviation based on the stated confidence interval and the given sample size. IMPORTANT: Use a t' value rounded to THREE decimal places in any calculations. Round non-integer results to 4 decimal places. 2. What is the sample mean? 7 3. What is the margin of error? ME= 4. What is the sample standard deviation?