Answered: Measuring lung function: One of the…

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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Measuring lung function: One of the measurements used to determine the health of a person's lungs is the amount of air a person can exhale under force in one second. This is called forced expiratory volume in one second, and is abbreviated FEV₁. Assume the mean FEV₁ for

10-year-old boys is 2.1 liters and that the population standard deviation is

=σ0.5

. A random sample of 7010-year-old boys who live in a community with high levels of ozone pollution are found to have a sample mean FEV₁ of 2.03 liters. Can you conclude that the mean FEV₁ in the high-pollution community is less than 2.1 liters? Use the =α0.05 level of significance and the P-value method with the TI-84 calculator.

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