Question: A study by Careerbuilder com found that 20 of companies check
A study by Careerbuilder.com found that 20% of companies check out job candidates’ profiles on social networking sites like Facebook and MySpace before deciding whether to employ them. Assuming that the survey included a simple random sample of 1200 companies, construct a 90% confidence interval for π = the population proportion of companies that check social net working sites before offering employment.
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