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Measuring lung function One of the measurements used to determine the health of a person...

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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 FEV Assume the mean FEV for 10 year old boys is 2 1 liters and that the population standard deviation is a 0 5 A random sample of 100 10 year old boys who live in a community with high levels of ozone pollution are found to have a sample mean FEV of 2 09 liters Can you conclude that the mean FEV in the high pollution community differs from 2 1 liters Use the a 0 05 level of significance and the P value method with the TI 84 calculator Part 1 of 4 Question Attempt 1 of 3 State the appropriate null and alternate hypotheses Ho u 2 1 H 2 1 This hypothesis test is a two tailed test Part 1 4 Part 2 of 4 d

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