The County Clerk Wants to Estimate the Proportion of Voters

question 28

Short Answer

The county clerk wants to estimate the proportion of voters who will need special election facilities.The clerk wants to construct a 95% confidence interval for the population proportion which extends at most 0.07 to either side of the sample proportion.How large a sample must be taken to assure these conditions are met?

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Definitions:

Flight Muscles

The muscles that power the wings in flying animals, enabling flight.

Constant Body Temperature

The maintenance of a steady internal body temperature regardless of external environmental changes.

Birds

Warm-blooded vertebrates with feathers, wings, a beak, and typically the ability to fly, laying hard-shelled eggs.