A political candidate is anxious about the outcome of the election. Complete parts (a) and (b) below.
(a) To have his next survey result produce a 95% confidence interval with a margin of error of no more than 0.048
how many eligible voters are needed in the sample?
A political candidate is anxious about the outcome of the election. Complete parts (a) and (b)...
A polling firm called 1,000 likely voters to ask about their political preferences. Of those polled, 520 indicated that they would vote for the incumbent candidate. Determine the point estimate for the proportion of voters in the election district who will vote for the incumbent.What is the sampling distribution for p in this example?Approximately how many voters must be polled for a margin of error equal to .01, assuming a confidence level of 95%? Show your work.
5) In a recent presidential election, 500 voters were surveyed and 350 of them said that they voted for the candidate who won. a. Construct a 96% confidence interval estimate of the percentage of voters who said they voted for the candidate who won. b. How many voters must they survey if they want 90% confidence that the sample proportion is in error by no more than 0.02?
1. A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 95% confidence level, what size of sample is needed? Give your answer in whole people. Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. They randomly survey 415 drivers and find that 286 claim to always buckle up....
Question 8 7 < > A political observer claims that candidate A would win more than 50% of votes in the upcoming election. 95% confidence intervals for the true proportion of all voters who would vote for candidate A obtained from four different samples are shown below. How many of these intervals would provide enough evidence to support the claim? (0.478, 0.547) (0.44, 0.527) (0.435, 0.494) (0.526, 0.578) 00 01 O2 03 04 > Next Question
38. A congressional candidate is running for reelection. In a recent poll of 900 registered voters, 510 said that they will vote for the candidate in the upcoming election. (round your answers to four decimal places) part a: Calculate and report the sample proportion part b: Calculate and report the margin of error for this poll for a 95% confidence interval. part c: Calculate and report the 95% confidence interval for the population proportion of registered voters who will vote...
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 95% confidence level, what size of sample is needed? Hint: Textbook Video [+]
A random sample of ikely voters showed that 64 % planned to vote for Candidate X, with a margin of eror of 1 percentage points and with 95 % confidence, a. Use a carefully worded sentence to report the 95 % confidence interval for the percentage of voters who plan to vote for Candidate X b. Is there evidence that Candidate X could lose? c. Suppose the survey was taken on the streets of a particular city and the candidate...
PLEASE ANSWER CLEARLY An advisor for a political campaign wishes to estimate with 95% confidence the proportion of registered voters who will vote for his candidate with the margin of error is 3% Find the best sample size for this study. Round the decimal to 3 decimal places.
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 5% margin of error at a 95% confidence level, what is the minimum sample size needed for the study? Give your answer as a whole number.
1 In the November 2016 election, Donald Trump received 49% of the votes cast in Florida (Hillary Clinton received 47%). Many news organizations conduct surveys before elections to try to predict the winner. Suppose a survey was conducted in Florida shortly before the election such that we can assume that the true proportion of the population who planned to vote for Trump was 49%. The pollsters surveyed 600 likely voters and found that 283 of them planned to vote for...