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A state highway patrol official wishes to estimate the number of drivers that exceed the speed limit on a certain road. How large of a

A state highway patrol official wishes to estimate the number of drivers that exceed the speed limit on a certain road. How large of a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more tan 2%. A previous study indicated that 72% of drivers on this road exceed the speed limit.

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