Fireworks on July 4th: In late June 2012, Survey USA published results of a survey stating that 54% of the 581 randomly sampled Kansas residents planned to set off fireworks on July 4th. Determine the margin of error for this point estimate using a 95% confidence level. Round your answer to the nearest percent. The margin of error is:
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- List the sample space of each experiment. Picking a one-digit numberShow the sample space of the experiment: toss a fair coin three times.In a poll of 650 likely voters, 338 indicated that they planned to vote for a particular candidate. Find the sample proportion. (Write answer as a decimal) Approximate the margin of error for a 95% confidence level. (Write answer as a decimal) ± Find the 95% confidence interval. (Write answers as a percentage) ( % , % )
- A random sample of 600 voters in Centreville indicated that 90 of them believed their congressional representative was honest and trustworthy. A- Identify the population and sample in the study, B- find the sample proportion of those who believed their congressional representative was honest and trustworthy, C- find the margin of error, D- find a 95% confidence interval for those who think their congressional representative was honest and trustworthy.In June 2020, a Gallup Poll asked U.S. adults whether immigration was a good thing or a bad thing forthe country. Out of 1000 respondents, 600 said it was a good thing. (b) Check the conditions to determine whether you can use the CLT to find a confidence interval. (c) Find the mean and standard error of the sampling distribution? (d) Find a 95% confidence interval for the proportion who believe immigration is a good thing.a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists.
- A poll was conducted to determine why Americans decide not to go to college. Of the 335 Americans who didn't go to college survey surveyed, 47% decided not to go to college because they couldn't afford it. Suppose we wanted the margin of error for the 90% confidence level to be about 1.5%. What sample size would you recommend for the survey? Round your answer appropriately.Presidential Travel In a survey of 1004 individuals, 442 felt that President George W. Bush spent too much time away from Washington. Find a 95% confidence interval for the true population proportion.use the given sample data and confidence level. In each case, (a) find the best point estimate of the population proportion; (b) identify the value of the standard error, SE; (c) identify the value of the margin of error, ME; (d) construct the confidence interval, CI; (e) write a statement that correctly interprets the confidence interval. 1. In a study of 1228 randomly selected medical malpractice lawsuits, it was found that 856 of them were dropped or dismissed (based on data from the Physicians Insurers Association of America). Construct a 95 % confidence interval for the proportion of medical malpractice lawsuits that are dropped or dismissed.