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In a survey of 250 commuters, 180 were found to have a commute of less than...

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Basic Math

In a survey of 250 commuters, 180 were found to have a commuteof less than 30 minutes.

  1. Find the 90% confidence interval of the true proportion ofcommuters who have a commute of less than 30 minutes.
  2. Find the 95% confidence interval of the true proportion ofcommuters who have a commute of less than 30 minutes.

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