A political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each person was asked who they plan on voting for in the 2024 presidential election. 110 said they plan on voting for Candidate A, 185 said they plan on voting for Candidate B, and 15 were unsure or plan to vote for another candidate. The researcher wants to construct a 95 % confidence interval for the proportion of all registered voters in Orlando who plan to vote for Candidate B. What is the point estimate? Round final answer to 3 decimal places.

Q: 2. Suppose that you take a random sample of 360 people who voted in the last election in a heavily…

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Sample size:The minimum sample size for a desired confidence level, α with a given margin of error,…

Q: A political action group wants to conduct a poll to determine what percentage of people will vote…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: When 460 junior college students were surveyed, 100 said they have a passport. Construct a 95%…

A: Given that there are 460 junior college students and 100 said they have a passport. That is, n=460…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

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Q: The newspaper conducted a survey and asked some of the city's voters which candidate they preferred…

A: For the given confidence interval, the margin of error, E is:

Q: We surveyed 53 people in an attempt to determine the proportion of Americans who lease a vehicle. 13…

A: The proportion of sample Americans who lease a vehicle is, Thus, the proportion of sample Americans…

Q: In a random sample of 100 voters in a school district, 40 of them stated they were in favor of the…

A: Solution: Let X be the number of voters stated they were in favor of the school district bond…

Q: b. In the year 2000, a survey of 1189 U.S. adults were asked who they felt was the greatest…

A: Given,n=2000x=331p^=xnp^=3312000=0.16551-p^=1-0.1655=0.8345α=1-0.90=0.1α2=0.05Z0.05=1.645…

Q: In a recent poll, 430 people were asked if they liked dogs, and 41% said they did. Find the margin…

A: It is given that the value of n is 430, p hat is 0.41 and the confidence level is 0.99.

Q: Political survey- A political analyst found that 43% of 300 randomly seleted republican voters feel…

A: It is given that p hat is 0.43 and sample size is 300. The confidence level is 0.95.

Q: Out of 1,500 licensed drivers, 900 admitted that they do not like to drive at night. What is the 92%…

A: Given Information:  Total Number of drivers = 1500  Number of drivers that do not like to drive at…

Q: If, based on a sample size of 850​, a political candidate finds that 479 people would vote for him…

A: Given that  n=850 , X=479 Find 95​% confidence interval for his expected proportion of the​ vote?

Q: b. In the year 2000, a survey of 977 U.S. adults were asked who they felt was the greatest…

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Q: n a survey of 2480 golfers, 372 said they were left-handed. Construct a 92% confidence interval for…

A: The given data is appropriate for single proportion confidence interval . because it is a large…

Q: 1992, the women in two statistics classes for students in the liberal arts at a large northeastern…

A: In 1992, the women in two statistics classes for students in the liberal arts at a large…

Q: In September 2011, Gallup surveyed 1,004 American adults and asked them whether they blamed Barack…

A: It is given that sample size (n) is 1004 and p-hat value is 0.53.

Q: 1. The Hartford Insurance Company wants to estimate the percentage of drivers who change tapes or…

A: Please see the attachment..

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A: Given , n = 1008 x = 598

Q: 2. A researcher wants to estimate the daily expenses of college students. He wants a 95% confidence…

A: We have given that,  Population standard deviation (σ) = 99.50, margin of error (E) = 45 and…

Q: in a recent poll, 220 people were asked if they liked dogs, and 36% said they did . find the margin…

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Q: A random sample of 600 voters in Centreville indicated that 90 of them believed their congressional…

A: Formula for confidence interval for population proportion : CI =p^ ± E  Where ,  p^ is sample…

Q: In a recent poll, 260 people were asked if they liked dogs, and 67% said they did. Find the margin…

A: Given: p = 67%=0.67 n= 260 The value of z at a 90% confidence level is 1.645, which can be found by…

Q: You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You…

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Q: In a previous election, the confidence interval for the proportion of likely voters who would vote…

A: given;confidence interval for the proportion;(0.4401, 0.5199)i.e. (p^-E, p^+E)where  p^ : point…

Q: Ten students on a low-fat diet designed to lower their cholesterol and recorded their before and…

A: Let X represents the cholesterol level before diet and Y represents the cholesterol level after…

Q: Elly and Drew work together to collect data to estimate the percentage of their classmates who own a…

A: Given that Elly and Drew work together to collect the data to estimate the percentage of their…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: The formula for the sample size is as follows:

Q: 2, A recent survey asked San Diego residents the following question: "If you had been aware that…

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Q: To determine the proportion of Americans who support affirmative action policies for minorities and…

A: The objective is to define the sample size for estimating the true proportion of Americans, who…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

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Q: An online seller of Yema Cake, surveyed several customers. Fifty-two percent (52%) of the customers…

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Q: Federal Gas Tax. The Quinnipiac University Poll conducts nationwide surveys as a public service and…

A: a)It is given that:

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Here,…

Q: A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for…

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Q: A Gallup poll asked a sample of Canadian adults if they thought the law should allow doctors to end…

A: (a) The sample proportion of Quebec adults who would allow doctor-assisted suicide is, The critical…

Q: 1. In a poll of 2,500 likely voters, 966 say that the Philippines spend too little on education.…

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Q: Political parties rely heavily upon polling to measure their support in the electorate in a country…

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Q: A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for…

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Q: A poll conducted in January 2020 surveyed likely democrat primary voters about who they would vote…

A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Q: In a recent poll, 110 people were asked if they liked dogs, and 40% said they did. Find the margin…

A: For 99% confidence intervalα=1-CI=1-0.99=0.01So, zα2=z0.012=z0.005=2.576

Q: Through polling, it was estimated that the percent of people who will vote for a particular…

A: Given information Percentage of people who will vote in a upcoming election p-hat = 36.2% Margin of…

Q: previous election, the confidence interval for the proportion of likely voters who would vote for…

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Q: university dean is interested in determining the proportion of students who receive some sort of…

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Q: Out of 400 people sampled, 68 preferred Candidate A. Based on this, estimate what proportion of the…

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Q: Political Survey- A political analyst found that 43% of 300 randomly selected republican voters feel…

A: It is given that p hat is 0.43 and sample size (n) is 300. The confidence level is 0.95.

Q: ays before the 2016 presidential election, a Loras College poll asked 500 randomly selected likely…

A: The confidence interval indicate that true proportion of voters who favor Donald Trump is 43% which…

Q: In a past presidential election, 36,523,493 people voted for Candidate A; 36,417,321 for Candidate…

A: The appropriate interpretation is to be made considering the proportion of votes for candidate A.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given dataError = 2.5% = 0.025Confidence level = 0.995Significance level = α=1-0.995=0.005