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In: Statistics and Probability

Many traffic accidents are blamed on motorists who are distracted by cell phone use while driving....

  1. Many traffic accidents are blamed on motorists who are distracted by cell phone use while driving. In a 1999 survey, 30% of adults said that they make phone calls sometimes or frequently while driving alone. A recent random sample of 500 adults showed that 165 of them make phone calls sometimes or frequently while driving alone. At the 1% level of significance, can you conclude that the current proportion of adults who make such phone calls exceeds .3?
  1. Identify the proper Test or Confidence interval:
  1. Complete the Test or Confidence Interval..

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Expert Solution

orchestra answered 2 years ago
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