A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 97% confidence interval for the true proportion of women shoppers

  1. A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 97% confidence interval for the true proportion of women shoppers who shop on impulse? Express your answer in interval notation and round to 3 decimal places.
  2. A survey was mailed to residents near a former Nuclear Power Plant. The question on the survey was ,”Should the power plant be reopened?” Of the 500 respondents, 240 favored it, 180 opposed it and 80 were undecided. Find a 95% confidence interval for the true proportion of those who oppose reopening the plant. Put your answers in interval notation and round to three decimal places

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