Hypothesis test for the difference between two population proportions Jump to level 1 A city council is trying to determine if library B, with extended hours, has a higher proportion of patrons under the age of 18 than library A, which closes at 6:00 pm. A random sample of patrons from both libraries are checked. The results of the data collected are shown below. Library A Library B Successes 56 Successes Observations 150 Observations 97 200 0.485 p-hat_1 0.373 p-hat_2 Confidence Level 95% P= Ex: 1.234 z-score 2.091 p-value 0.0183 -2 -1 1 2 3 z = Ex: 1.234 Library A patrons: n₁ = Ex: 9 Library B patrons: n₂ = Sample proportion for library A patrons: p1 = Ex: 1.234 Sample proportion for library B patrons: p2 = Chank -3 0

Hypothesis test for the difference between two population proportions Jump to level 1 A city council is trying to determine if library B, with extended hours, has a higher proportion of patrons under the age of 18 than library A, which closes at 6:00 pm. A random sample of patrons from both libraries are checked. The results of the data collected are shown below. Library A Library B Successes 56 Successes Observations 150 Observations 97 200 0.485 p-hat_1 0.373 p-hat_2 Confidence Level 95% P= Ex: 1.234 z-score 2.091 p-value 0.0183 -2 -1 1 2 3 z = Ex: 1.234 Library A patrons: n₁ = Ex: 9 Library B patrons: n₂ = Sample proportion for library A patrons: p1 = Ex: 1.234 Sample proportion for library B patrons: p2 = Chank -3 0

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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