Population with population proportion
A random sample of size 100 is drawn from a population with population proportion 0.70. Find the probability that the sample proportion:
a. Exceeds 0.75
b. Between 0.55 and 0.80
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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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A conductor carrying a current I = 15.3 A is directed along the positive x axis and perpendicular to a uniform magnetic field. A magnetic force per unit length of 0.130 N/m acts on the conductor in the negative y direction. (a) Determine the magni
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