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Doctors and nurses. Nurse practitioners are nurses with advanced qualifications who often act much like primary care physicians. An experiment assigned 1316 patients who had no regular source of medical care to either a doctor (510 patients) or a nurse practitioner (806 patients). All of the patients had been diagnosed with either asthma, diabetes, or high blood pressure before being assigned. The response variables included measures of the patients' health and of their satisfaction with their medical care after 6 months.
(a) Is the diagnosis (asthma, etc.) a treatment variable or a block? Why?
(b) Is the type of care (nurse or doctor) a treatment variable or a block? Why?
A flatbed truck going 100 km/h rounds a horizontal curve of 300 meter radius inwardly banked at 10 degree. Obtain the friction force F action on the crate
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.10 km long. The density of gold is 19.3 x 10^3 kg/m^3, and its resistivity is 2.44 x 10^-8 ohm. m. What is the resistance of such a wire at 20.0 degree C..
A 21 kg suitcase is being pulled with constant speed by a handle that is at an angle of 30 degrees above the horizontal. What was the mass of the dog food
A helicopter is flying horizontally at a speed of 60 m/s and accidentally drops a storage pod from an elevation on 300 m. Neglect air resistance, find what is the total distance the storage pod covers
If a car takes a banked curve at less than a given speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads).
A spinning disk (i.e., a rotating disk) has a radius of 6 cm (6 centimeters) and a constant rate of rotation of 7200 rpm (7200 revolutions per minute). Find the total distance traversed in 5 seconds by a particle of dust that lies at a point on th..
An air-filled cylindrical inductor has 2500 turns, and it is 3.8 in diameter and 32.6 long. What is its inductance? How many turns would you need to generate the same inductance
Monochromatic light is incident on a grating that is 40 mm wide ruled 24,000 lines. The line is imaged at 34.0 degrees in the second-order spectrum. Discover the wave length of the incident light
odium ions (Na+) move at 0.853 m/s through a bloodstream in the arm of a person standing near a large magnet. find what would be the magnetic force on the arm
An archer shoots an arrow toward a 300 g target that issliding in her direction at a speed of 3.50 m/s on a smooth,slippery surface. The 32.5 g arrow is shot with a speed of35.0 m/s and passes through the target, which is stopped by theimpact.
a box of mass 11.1 rests on the flat floor of a truck. the coefficients of friction between the box and floor are 0.19
A swimmer is 60 m from shore in a river flowing at 4m/s. The swimmer swims at 6m/s. The swimmer heads 15 degrees upstream. How many meters downstream (from the starting position) does the swimmer reach shore?
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