In a random sample of 100 eligible voters, 85 preferred candidate A over candidate B. Find a 99 percent confidence interval for the proportion p of voters favoring candidate A.
In a random sample of 100 eligible voters, 85 preferred candidate A over candidate B. Find...
There are 20,000 eligible voters in York County, South Carolina. A random sample of 500 York County voters revealed 350 plan to vote to return Louella Miller to the state senate. a. Construct a 99% confidence interval for the proportion of voters in the county who plan to vote for Ms. Miller. (Round your answers to 3 decimal places) Confidence interval for the proportion is.............. and ...................
1. In a random sample of 400 eligible voters interviewed in a large county, 228 objected to the use of public funds for the construction of a new professional football stadium. Construct a 95% confidence interval for the corresponding proportion of eligible voters in the whole county 2. With reference to the previous problem, what can we say with 99% confidence about the maximum error if- = is used as an estimate of the proportion of all eligible voters 7...
In a random sample of 100 registered voters, 20 say they plan to vote for Candidate A.Determine a 95% confidence interval for the proportion of all the registered voters who will vote for Candidate A.You are interested in knowing support for candidate by gender to provide strategic advice to candidate B. Suppose your guess based on previous knowledge is that female support for candidate B is around 20 percent, and male support for candidate B is around 50 percent. Suppose...
In a random sample of 400 registrered voters, 120 indicated they plan to vote for Candidate A. Determine a 95% confidence interval for the proportion of all the registered voters who will vote for Candidate A.
a) A random sample of 100 housewives shows that 60 prefer detergent A. Compute a 99% confidence interval for the fraction of total housewives favoring detergent A Give an interpretation of a confidence interval. b) A poll of 1000 randomly selected voters was taken to estimate the proportion of population that were in support of the president's current policy on foreign aid. If 555 were favorable, did we find sufficient evidence to support the president's claim that he has the...
A random sample of 432 voters revealed that 100 are in favor of a certain bond issue. A 95 percent confidence interval for the proportion of the population of voters who are in favor of the bond issue is
In a past presidential election, 39,885,048. people voted for Candidate A; 39,660,675 Candidate B; and 193,670 for third-party candidates. a. What percentage of voters chose Candidate A? Find the % of voters who chose Candidate A Answer _____% b. Would it be appropriate to find a confidence interval of voters choosing Candidate A? (Answer is A,B,C or D) A.Yes, it is appropriate to find a confidence interval because the proportion is a sample proportion and the conditions for the Central...
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...
A random sample of 60 voters found that 42% were going to vote for a certain candidate. Find the 99% limit for the population proportion of voters who will vote for that candidate.
A survey organization is going to take a simple random sample of ? voters from among all the voters in a state, to construct a 99% confidence interval for the proportion of voters who favor a proposition. Find an ? such that the total width of the confidence interval (left end to right end) will be no more than 0.06. Remember that you can bound the variance of an indicator.