In the Star and Tribune newspaper, there is an article entitled "1 in 8 school buses fail tests." article says that the overall statewide proportion of school buses that fail safety tests is 9%. However, one bus company has a higher rate of over 12%. Assume that we want a new estim. che statewide proportion of school buses that fail the safety inspection. We take a sample of puses and find that 90 buses fail the safety inspection. Based on the new sample data, I construct this 90% confidence interval estimate for p:

In the Star and Tribune newspaper, there is an article entitled "1 in 8 school buses fail tests." article says that the overall statewide proportion of school buses that fail safety tests is 9%. However, one bus company has a higher rate of over 12%. Assume that we want a new estim. che statewide proportion of school buses that fail the safety inspection. We take a sample of puses and find that 90 buses fail the safety inspection. Based on the new sample data, I construct this 90% confidence interval estimate for p:

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 7CR

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