Please show work A pollster wants to conduct a pre-election poll with a margin of error of 2.5% and a 95% confidence level. The pollster does not know ahead of time what the proportion in favor of either candidate is. How many people must be included in the sample to achieve the goal of a 2.5% margin of error? [Note that p -hat is unknown and is therefore assumed to be 0.5.]

Please show work A pollster wants to conduct a pre-election poll with a margin of error of 2.5% and a 95% confidence level. The pollster does not know ahead of time what the proportion in favor of either candidate is. How many people must be included in the sample to achieve the goal of a 2.5% margin of error? [Note that p -hat is unknown and is therefore assumed to be 0.5.]

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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