Obesity is defined as a body mass index (BMI) of 30 kg/m2 or more. A 95% confidence

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Obesity is defined as a body mass index (BMI) of 30 kg/m2 or more. A 95% confidence interval for the percentage of U.S. adults aged 20 years and over who were obese was found to be 22.4 to 23.5%. What was the sample size?

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