A study showed that 110 of 200 people say that their major source of news is TV. What would be a 90% confidence interval for the proportion?

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  1. A study showed that 110 of 200 people say that their major source of news is TV.  
  2. What would be a 90% confidence interval for the proportion?
  1. What’s the appropriate sample if you want to re-conduct that survey

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