A magazine reported that a study commissioned by eBay motors found that nearly 40% of millennials who drive a car that is more than 5 years old have named their cars. Suppose that this statement was based on a sample of size 800 and that 315 reported that they had named their car. Assuming that the sample was selected to be representative of the population of millennials who drive a car that is more than 5 years old, calculate a 90% confidence interval for the proportion of all millennials who drive a car that is more than 5 years old who have named their cars. (Round your answers to three decimal places.)

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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A magazine reported that a study commissioned by eBay motors found that nearly 40% of millennials who drive a car that is more than 5 years old have named their cars. Suppose that this statement was based on a sample of size 800 and that 315 reported that they had named their car.

Assuming that the sample was selected to be representative of the population of millennials who drive a car that is more than 5 years old, calculate a 90% confidence interval for the proportion of all millennials who drive a car that is more than 5 years old who have named their cars. (Round your answers to three decimal places.)

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