Estimate the population proportion
Construct a 95% confidence interval to estimate the population proportion with a sample proportion equal to 0.60 and a sample size equal to 150.
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Why might a company decide to use activity-based costing? How would a company go about choosing the cost pools and allocation rates?
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The density of air is 0.50 kg/m3 at 8.0 km and 0.73 kg/m3 at 4.0 km. Assume that the airplanes have the same effective cross-sectional area and drag coefficient C.
Construct a 90% confidence interval to estimate the average attendance of an NCAA men's basketball game during the 2009-2010 season.
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The IRS reported that 62% of individual tax returns were filed electronically in 2008. A random sample of 225 tax returns from 2010 was selected. From this sample, 163 were filed electronically.
A 2.00kg block hangs from a spring. A 300g body hung below the block stretches the spring 2.00cm farther. (a) What is the spring constant? (b) If the 300g body is removed and the block is set into oscillation, find the period of motion.
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