In September 2005, 33% of adult Americans believed in haunted houses. In a poll conducted in June 2010, 370 of 1002 adult Americans aged 18 or older believed haunted houses. Is there sufficient evidence to believe that the proportion of adult Americans who believed in haunted houses has increased at the alpha = 0.05 level of significance.

In September 2005, 33% of adult Americans believed in haunted houses. In a poll conducted in June 2010, 370 of 1002 adult Americans aged 18 or older believed haunted houses. Is there sufficient evidence to believe that the proportion of adult Americans who believed in haunted houses has increased at the alpha = 0.05 level of significance.

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Description: In September 2005, 33% of adult Americans believed in haunted houses. In a poll conducted in June 2010, 370 of 1002 adult Americans aged 18 or older believed haunted houses. Is there sufficient evidence to believe that the proportion of adult America

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 8CR

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