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A polling organization interviewed by phone 400 randomly selected adults in New York City about their...

  1. A polling organization interviewed by phone 400 randomly selected adults in New York City about their opinion on random drug testing for taxi drivers and found that 38% favored such a regulation.
  1. Find the standard error of the proportion.
  2. Find and interpret the 95% confidence interval for the population proportion.
  3. Find and interpret the 99% confidence interval for the population proportion..
Math   Statistics-And-Probability   
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