Concept explainers
A student polls his school to see If students In the school district are for or against the new legislation regarding school uniforms. She surveys 600 students and finds that .180 are against the new legislation.
a. Compute a 90% confidence Interval for the true percent of students who are against the new legislation, and interpret the confidence Interval.
b. In a sample of 300 students, 68% said they own an iPod and a smart phone. Compute a 97% confidence interval for the true percent of students who own an IPod and a smartphone.
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Chapter 8 Solutions
Introductory Statistics
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Calculus Volume 1
Introductory Statistics (10th Edition)
Elementary Statistics (13th Edition)
Essentials of Statistics (6th Edition)
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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