What is the probability that the sample mean
Heights of trees in a forest are normally distributed with mean 50 feet and standard deviation 12 feet. In a random sample of 36 trees what is the probability that the sample mean:
a. Exceeds 55ft
b. Between and 47.5 and 53.1 feet.
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The working fluid at 23C rejects 100 kJ/min as heat transfer from the engine. Determine the temperature of the fluid during heat addition, in degrees Celcius.
Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other three wires.
A random sample of size 64 is drawn from a population with mean 80 and standard deviation 20. Describe the sampling distribution of the sample mean.
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The four wires that lie at the corners of a square of side a= 4.20 cm are carrying equal currents i= 1.30 A into (+) or out of (-) the page, as shown in the picture. A) Calculate the y component of the magnetic field at the center of the square.
A random sample of size 100 is drawn from a population with population proportion 0.70. Find the probability that the sample proportion:
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Sixty percent of all road accidents are due to distracted driving. In a random sample of 100 accidents, what is the probability more than 70 are due to distracted driving.
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During a training exercise, Lieutenant Carter was planning to maneuver Third Platoon across a river that created a linear danger area.
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