## Question

###### Anautomotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic In an earlier study the population proportion was estimated to be 0.31. How large a sample would be required in order to estimate the fraction of new car buyers who prefer foreign cars at the 95% confidence level with an error of at most 0.03?

Anautomotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic In an earlier study the population proportion was estimated to be 0.31. How large a sample would be required in order to estimate the fraction of new car buyers who prefer foreign cars at the 95% confidence level with an error of at most 0.03?

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