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Back to 8.3 A Confidence Interval for A Population Proportion

8.3 Exercise 7

Avg difficulty 2.5

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 480 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.

OpenStax Introductory Business Statistics 2e, 8.3 A Confidence Interval for A Population Proportion, exercise 7

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.