Question 135525
A recent study of 100 people in Miame found 27 were obese. Find the 90% confidence interval of the population proportion of individuals living in Miami who are obese.
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p-hat = 27/100 = 0.27
The standard error = E = 1.645*sqrt[0.27*0.73/100] = 0.0730
90% CI: 0.27-0.0730 < p < 0.27+0.073
90% CI: 0.1970 < p < 0.3430
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Cheers,
Stan H.