A large private university and a large public university selected random sample of incoming freshman and determined the proportion that were in the top 10% of their graduating class. Let p1 be the proportion of all entering freshmen at the private university who graduated in the top 10% of their high school class and let p2 be the proportion of all entering freshmen at the public university who graduated in the top 10% of their high school class. A 95% confidence interval for p1 - p2 is (0.088, 0.126).
A large private university and a large public university selected random sample of incoming freshman and determined the proportion that were in the top 10% of their graduating class. Let p1 be the proportion of all entering freshmen at the private university who graduated in the top 10% of their high school class and let p2 be the proportion of all entering freshmen at the public university who graduated in the top 10% of their high school class. A 95% confidence interval for p1 - p2 is (0.088, 0.126).
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A large private university and a large public university selected random sample of incoming freshman and determined the proportion that were in the top 10% of their graduating class. Let p1 be the proportion of all entering freshmen at the private university who graduated in the top 10% of their high school class and let p2 be the proportion of all entering freshmen at the public university who graduated in the top 10% of their high school class. A 95% confidence interval for p1 - p2 is (0.088, 0.126).
(a) What is the point estimate that was used to create the interval? What is the margin of error?
b) Interpret the confidence level.
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