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1. In the US, the distribution of albumin levels in cerebrospinal fluid is 29.5 ± 2.1 mg/100ml.
a) What proportion of the mean lie above 35mg/100ml?
b) What is the albumin level corresponds to the upper 5% of the distribution?
Question 2:
In a study designed to test whether or not there is a difference between the average heights of adult females born in two different countries, random samples yielded the following results: in the first country the number of subjects was 120, the mean and standard deviation 62.7 ± 2.5 inches; in the second country these values were 150 and 61.8 ± 2.62 inches, respectively. Is there any statistically significant difference between the two groups? Write all steps as learned in class for your statistical analysis.</pclass="msonormal">
The wheels, axle, and handles of a wheelbarrow weigh W= 66 N. The load chamber and its contents weighWL = 560 N. The drawing shows these two forcesin two different wheelbarrow designs. To support the wheelbarrow inequilibrium, the man’s hands appl..
When a certain element is bombarded with high-energy electrons, Determine the atomic number Z of the element.
(a) Find the magnitude of the worker's force. How much work is done on the block by? (b) The worker's force,
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
A parallel-plate capacitor has plates with 46cm2area separated by a 35-m layer of polyethylene. Find its working voltage
Marta flies past you at 78% of the speed of light, traveling in a spaceship that would measure 50 meters from end to end if it were at rest in your reference frame. If you measure the length of her spaceship as it goes by, how long will it be from ..
Consider a satellite with a mass of 314 kg moving in a circular orbit around the Earth at a height of 1303 km above the surface. Find the speed of the satellite in m/s with 3 significant figures.
A bus running along a straight street at 30m/s is slowed uniformly to stop in 5sec. Find the acceleration and the stopping distance.
How do you find the approximate value of the surface integral over a given surface? How do you find the exact value of the surface integral?
The membrane of the axon of a nerve cell is a thin cylindrical shell of radius r = 10-5 m, length L = 0.21 m, and thickness d = 10-8 m. Find the capacitance of the membrane
Batman (mass = 95.9 kg) jumps straight down from a bridge into a boat (mass = 683 kg) in which a criminal is fleeing. The velocity of the boat is initially +8.67 m/s. What is the velocity of the boat after Batman lands in it?
A 1500 kg artificial satellite will appear to be stationary to anobserver on Earth if its period is exactly equal to Earth'srotation period, i.e one day. (a) What must the orbitalradius of such a satellite be? and (b) What will be its orbitalspeed?
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