Measuring lung function: One of the measurements used to determine the health of a person's...
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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 o=0.4. A random sample of 62 10-year-old boys who live in a community with high levels of ozone pollution are found to have a sample mean FEV? of 2.04 liters. Can you conclude that the mean FEV? in the high-pollution community is less than 2.1 liters? Use the a=0.01 level of significance and the P-value method with the TI-84 calculator.Part 1 of 4State the appropriate null and alternate hypotheses.Ho: ? = 2.1H?: ? <2.1This hypothesis test is a left-tailedPart 2 of 4Find the P-value. Round the answer to at least four decimal places.
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