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(Solution Library) In an ABCNews.com nationwide poll done in 2001, the proportion of respondents who thought that it should be illegal to use a handheld cellular

Question: In an ABCNews.com nationwide poll done in 2001, the proportion of respondents who thought that it should be illegal to use a handheld cellular telephone while driving a car was .69 (69%). The poll’s sample size was 1027.

  1. Find the value of the standard error of the sample proportion.
  2. Find a 95% confidence interval estimate of the population proportion that thinks it should be illegal to use a cellular telephone wile driving.
  3. Find a 90% confidence internal estimate of the population proportion that thinks it should be illegal to use a cellular telephone while driving.

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