Why is this estimate likely to be biased

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Reference no: EM131035435

Sensitive questions. The National AIDS Behavioral Surveys found that 320 individuals in its random sample of 1334 urban heterosexuals aged 18 to 25 years said that they had multiple sexual partners in the past year. That's 24% of the sample. Why is this estimate likely to be biased? Do you think it is biased high or low? Does the margin of error of a 95% confidence interval for the proportion of all urban heterosexuals aged 18 to 25 with multiple partners allow for this bias?

Reference no: EM131035435

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