Find the 95% confidence interval estimate for the Conservative share of the vote.
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A political opinion poll questions 1000 people. Some 464 declare they will vote Conservative. Find the 95% confidence
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- The election is coming up in three weeks, and you’d like one last poll to see where things stand. Last month’s poll showed your candidate had 55% support, and you want to know what percent of the voters would vote for your candidate if the election were held today. You want 95% confidence in your answer, with a margin of error no more than 3%. Determine how many voters you need to survey.Hand written please. Suppose that in a population of surveyors in a certain area 38% have surveyed people whether or not people are smokers. 900 randomly selected voters are asked if they have done this survey. How likely is it that no more than 35% of surveyors have asked this. Round to the nearest thousandth.In a recent poll, 270 people were asked if they liked dogs, and 34% said they did. Find the margin of error of this poll, at the 99% confidence level.Give your answer to three decimals
- In a recent poll, 170 people were asked if they liked dogs, and 76% said they did. Find the margin of error of this poll, at the 90% confidence level.Give your answer to three decimalsI would like to esCmate the proporCon of adults who own a pet. How many people should I poll in order to be 94% confident that I am within 2% of the actual proporCon?A public opinion pollster wants to estimate the percentage of voters who favor an upcoming proposal. How many voters must be surveyed to construct a 95% confidence interval for the percentage of voters who favor the proposal within 3 percentage points? Remember, sample size must be a whole number.
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