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Unformatted text preview: 95% confidence interval if you can reasonable presume that the percentage of adults sampled who drink alcoholic beverage will be at least 60%. (2305) 2. The neurologists from The University of Malaysia found that, among 94 patients infected with the Nipah virus, 30 died from encephalitis. (a) Find a 90% confidence interval for the percentage of Malaysians infected with Nipah virus who will die from encephalitis. (0.240058, 0.39824) (b) Obtain a sample size that will ensure a margin of error of at most 5 percentage for a 90% confidence interval without making a guess for the observed value of the sample proportion. (271) (c) Obtain a sample size that will ensure a margin of error of at most 5 percentage for a 90% confidence interval if you can reasonable presume that the percentage of sampled Malaysian infected with Nipah virus who will die from encephalitis will be between 25% and 40%. (260)...
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 Winter '07
 Dan

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