Previously, an organization reported that teenagers spend 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Conduct a hypothesis test. The null and alternative hypotheses are: A. H0:μ=4.75H0:μ=4.75 Ha:μ>4.75Ha:μ>4.75 B. H0:μ=4.5H0:μ=4.5 Ha:μ>4.5Ha:μ>4.5 C. H0:μ≥4.5H0:μ≥4.5 Ha:μ<4.5Ha:μ<4.5 D. H0:p=4.5H0:p=4.5 Ha:p>4.5

Previously, an organization reported that teenagers spend 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Conduct a hypothesis test. The null and alternative hypotheses are: A. H0:μ=4.75H0:μ=4.75 Ha:μ>4.75Ha:μ>4.75 B. H0:μ=4.5H0:μ=4.5 Ha:μ>4.5Ha:μ>4.5 C. H0:μ≥4.5H0:μ≥4.5 Ha:μ<4.5Ha:μ<4.5 D. H0:p=4.5H0:p=4.5 Ha:p>4.5

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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