In 2001, 23% of Americans university undergraduate students had at least one tattoo. A health practitioner suspects that the percent has change since then. She obtains a random sample of 1026 university undergraduates and finds that 254 have at least one tattoo. Is this sufficient evidence to conclude that the proportion is different from 0.32 at α = 0.05 level of significance

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
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In 2001, 23% of Americans university undergraduate students had at least one tattoo. A

health practitioner suspects that the percent has change since then. She obtains a random sample

of 1026 university undergraduates and finds that 254 have at least one tattoo. Is this sufficient

evidence to conclude that the proportion is different from 0.32 at α = 0.05 level of significance.

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