A federal report indicated that 22% of children under age 6 live in poverty in South Dakota, an increase over previous years. How large a sample is needed to estimate the true proportion of children...

Extracted text: A federal report indicated that 22% of children under age 6 live in poverty in South Dakota, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in South Dakota within 4% with 90% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=