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New production methods stressing teamwork have recently been instituted at car manufacturing plants in Detroit. Three teamwork production methods are to be compared to see if they are equally effective. Since large deviations often occur in the numbers produced daily, it is desired to test for equality of medians (rather than means). Samples of daily production volume for the three methods are as follows. Assume that these are random samples from the populations of daily production volume. Use the median test to help determine whether the three methods are equally effective.
5. The same power supply (10 volt) and resistors (R1=15 Ω, R2=30 Ω, and R3=55 Ω) are hooked up is series. (a) What is the equivalent resistance of the circuit?
a proton moving at 6.40 106 ms through a magnetic field of magnitude 1.80 t experiences a magnetic force of magnitude
A rifle is aimed horizontally at a target 35 m away. The bullet hits the target 2.8 cm below the aiming point. What is the bullet's time of flight
The specific heat of granite is 0.80 kJ/kg x C. If 106 MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C
A spring-loaded cannon aimed at 47 deg. above the horizontal is on the last car of a long train of flat cars. How far from the cannon on the train does the projectile land
A string on a guitar is stretched between two points 35.0 cm apart with a tension of 65.0 N. The velocity of wave propagation on the string is
a blow-dryer and a vacuum cleaner each operate with a voltage of 120 v. the current rating of the blow-dryer is 11 a
A box with a mass of 6 kg is lifted (without acceleration) by a height of 6.0 m in order to place it upon the shelf of a closet.
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 59.7 cm (0.597 m) and the flow speed of the petroleum is 10.7 m/s. what is the pipe\'s diameter at the refinery
A uniform bar of length l and mass m is suspended by two equal springs of equilibrium length b and force constant k , as shown in the diagram. find the normal modes of small oscillation in the plane.
a new planet which has ten times the mass of the earth and four times the radius.a what is the acceleration due to
A bicycle wheel has a diameter of63.1 cm and a mass of 1.85 kg. What force is required if the chain shifts to a 5.65 cm diameter sprocket
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