Out of 200 people sampled, 62 preferred Candidate A. Based on this, estimate what proportion of the entire voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three places.
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A: Given Data: p=445/500=0.89 n=500 z-value corresponding to 90% Confidence =1.645
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Q: Out of 400 people sampled, 300 preferred Candidate A. Based on this, estimate what proportion of the…
A: Given that Out of 400 people sampled, 300 preferred Candidate A. Here x=300 n=400
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A: The sample size is The number of success (preferring candidate A) is .The level of confidence is
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- According to a polling organization, 22% of adults in a large region consider themselves to be liberal. A survey asked 200 respondents to disclose their political philosophy: Conservative, Liberal, Moderate. Treat the results of the survey as a random sample of adults in this region. Do the survey results suggest the proportion is higher than that reported by the polling organization? Use an a = 0.01 level of significance. E Click the icon to view the survey results. Because npo (1- Po) =| > 10; the sample size is less than 5% of the population size, and the sample is given to be random, the requirements for testing the hypothesis satisfied. are (Round to one decimal place as needed.)Out of 300 people sampled, 60 preferred Candidate A. Based on this, estimate what proportion of the voting population (p) prefers Candidate A. Use a 90% confidence level, and give your answers as decimals, to three places.Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=964 and x = 540 who said "yes." Use a 95% confidence level.
- A poll of 1200 people is taken. Find the margin of error assuming a 95% level of confidence.In a random sample of 100 parts ordered from vendor A, 12 were defective. In a random sample of 200 parts ordered from vendor B, 10 were defective. Estimate the proportion of parts from vendor A that are defective and find the uncertainty in the estimate. Estimate the proportion of parts from vendor B that are defective and find the uncertainty in the estimate.VO TE VORES VOTE Out of 600 people sampled, 468 preferred Candidate A. Based on this, estimate what proportion the voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three 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 4% margin of error at a 95% confidence level, what size of sample is needed? Give your answer in whole people. 600Out of 300 people sampled, 21 preferred Candidate A. Based on this, find a 99% confidence level for the true proportion of the voting population (p) prefers Candidate A. Give your answers as decimals, to three places.The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…Out of 600 people sampled, 318 preferred Candidate A. Based on this, estimate what proportion of the voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three places.Out of 500 people sampled, 115 preferred Candidate A. Based on this, estimate what proportion of the entire voting population (p) prefers Candidate A. Use a 90% confidence level, and give your answers as decimals, to three places.Recommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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