Aviation and high-altitude physiology

Want create site? With Free visual composer you can do it easy.

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 7.5 4.8 4.2 3.3 2.1 (units: mm Hg/10)
y 44.8 31.5 26.2 16.2 13.9 (units: mm Hg/10)
(a) Verify that Σx = 21.9, Σy = 132.6, Σx2 = 112.23, Σy2 = 4141.38, Σxy = 679.89, and r ≈ 0.982.
(b) Use a 1% level of significance to test the claim that ρ > 0. (Use 2 decimal places.)
c) Verify that Se ≈ 2.7444, a ≈ -0.097, and b ≈ 6.077.
Se
a
b

(d) Find the predicted pressure when breathing pure oxygen if the pressure from breathing available air is x = 4.1. (Use 2 decimal places.)
(e) Find a 99% confidence interval for y when x = 4.1. (Use 1 decimal place.)
(f) Use a 1% level of significance to test the claim that β > 0. (Use 2 decimal places.)
(g) Find a 99% confidence interval for β and interpret its meaning. (Use 2 decimal places.)

Get Nursing Papers Online from Top Nursing Writers. Order Custom Nursing Papers Always


Order Now
Did you find apk for android? You can find new Free Android Games and apps.
error: