Estimate a population proportion
Find the minimum sample size required to estimate a population proportion to within 0.05 with 95% confidence.
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Find the lower end point of a 95% confidence interval for a population proportion based on a sample size of 100 if the sample proportion is 0.4. Give your answer to 2 decimal places.
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Into an evacuated 30L vessel is placed 0.1mol of n-butane dissolved in 0.9mol of n-hexane. if the vessel and its contents are kept at 298K, what is the pressure and the vapor and liquid compositions when equilibrium is achieved?
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