Confidence the proportion of students in school

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Mrs. DeBold wants to conduct a poll to estimate with 95% confidence the proportion of students in her school who have jobs in the evenings or on weekends. (A) How large a random sample is required to obtain a margin of error of at most 0.05 with 95% confidence? (B) Based on your answer to part A how big does her school have to be for the 95% confidence interval to be accurate? Explain.

Reference no: EM132858269

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