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Unformatted text preview: overpaid. Example 2 In a 1998 article, the credit card industry asserted that at most 50% of college students carry a credit card balance from month to month. In a random sample of 310 college students, 217 carried a balance each month. Find a 95% Confidence interval for the proportion that carry a balance. Example 3. Determining Sample Size Suppose you want to estimate the proportion of doctors that have participated in doctorassisted suicide to within .01 with 90% confidence. How many should you have in your sample?...
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 Fall '07
 MELutz
 Statistics, Binomial, Normal Distribution, Standard Deviation, confidence interval Sample

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