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Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen (15) 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. What are the null and alternative hypotheses?

Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen (15) 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. What are the null and alternative hypotheses?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen (15) 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. What are the null and alternative hypotheses? Select the correct response: Ho: u = 4.5 Ha: > 4.5 Ho μ 4.5 Ha: μ < 4.5 Ho: µ = 4.75 Ha: u > 4.75 Ho: x = 4.5, Ha: x > 4.5 < Previous Continue >
Transcribed Image Text:Previously, an organization reported that teenagers spent 4.5 hours per week, on average, on the phone. The organization thinks that, currently, the mean is higher. Fifteen (15) 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. What are the null and alternative hypotheses? Select the correct response: Ho: u = 4.5 Ha: > 4.5 Ho μ 4.5 Ha: μ < 4.5 Ho: µ = 4.75 Ha: u > 4.75 Ho: x = 4.5, Ha: x > 4.5 < Previous Continue >
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