Find actual percentage of accidents covered by company

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Reference no: EM13148975

A car insurance company would like to estimate the proportion of accident claims covered by the company. According to a preliminary estimate, 89% of the claims are covered. How large of a sample should be taken to estimate the proportion covered by the company if we want to be 95% confident that the sample percentage is within 3% of the actual percentage of the accidents covered by the company?

Reference no: EM13148975

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