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A research firm wants to be 90% confident that a population percentage has been estimated to within 3 percentage points. The research manager calculates the necessary sample size with 0.5 as his estimate of the population proportion.

A new business school graduate who has just joined the firm questions the research manager further, and they agree that the population proportion is no more than 0.3. If interviews cost $10 each, how much money has the new graduate just saved the company?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92215091

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