In Problems 7-12, parts (a) and (b) relate to testing
Physiology: Oxygen Aviation and high-altitude physiology is a specialty in the study of medicine. Let x = partial pressure of oxygen in the alveoli (air cells in the lungs) when breathing naturally available air. Let y = partial pressure when breathing pure oxygen. The (x, y) data pairs correspond to elevations from 10.000 feet to 30,000 feet in 5000-foot intervals for a random sample of volunteers. Although the medical data were collected using airplanes, they apply equally well to Mt. Everest climbers (summit 29,028 feet).
x | 6.7 | 5.1 | 4.2 | 3.3 | 2.1 (units: mm Hg/10) |
y | 43.6 | 32.9 | 26.2 | 16.2 | 13.9 (units: mm Hg/10) |
(Based on information taken from Textbook of Medical Physiology by A. C. Guyton, M.D.)
(a) Verify that
(b) Use a 1% level of significance to test the claim that
(c) Verify that
(d) Find the predicted pressure when breathing pure oxygen if the pressure from breathing available air is x = 4.0.
(e) Find a 90% confidence interval for y when x = 4.0.
(f) Use a 1% level of significance to test the claim that
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Chapter 11 Solutions
Understanding Basic Statistics
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