A 95% confidence interval for the population proportion was 0.54 ± 0.06. Based on this interval, what should the newspaper report?

Q: A recent study of high school students shows the percentage of females and males who have at LEAST…

A: The (1-α)% confidence interval for the difference in population proportions p1-p2 is given by;…

Q: A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter…

A: Given that Sample size n = 827 Sample proportion of students who prefer a quarter system = 0.61 The…

Q: A sample survey finds that 30% of a sample of 880 Ohio adults said good health was the thing they…

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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: Suppose a random sample of 459 married couples found that 307 had two or more personality…

A: There are two independent samples which are two married couples. Both samples follows normal…

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

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Q: Out of 400 people sampled, 336 preferred Candidate A. Based on this, estimate what proportion of the…

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Q: In a survey, people were asked whether they thought sun went around the planet Earth or vice versa.…

A: (a)   Obtain the proportion of people in the survey who believed the sun went around earth. The…

Q: An epidemiologist is worried about the prevalence of the flu in East Vancouver and the potential…

A: The random variable flu follows binomial distribution. X ~ B (n, p). The sample size is 337. The…

Q: Of 600 students sampled, 480 said they hoped to own a house someday. With 95% confidence, what is…

A: It is given that  Sample size, n = 600 Favourable cases, X = 4 Sample proportion, p^ = X/n  =…

Q: A poll of 657 home sellers found that 29.8% were trying to sell their home without a real estate…

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Q: The. Nielsen television ratings used a random sample of 2,000 homes and found that 45% of the homes…

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Q: A poll was conducted to examine if people are happy with the government. 400 people were asked and…

A: It is an important part of statistics . It is widely used .

Q: Out of 600 people sampled, 546 preferred Candidate A. Based on this, estimate what proportion of the…

A: X = 546 N = 600 95% confidence level

Q: In a 2008 survey, people were asked their opinions on astrology - whether it was very scientific,…

A: (a)given that,possible chances (x)=71size(n)=1438success rate ( p )= x/n = 0.0494point of estimate =…

Q: Form 90%, 95%, and 99% confidence intervals for the proportion of voters who favor the candidate.…

A: Given that Sample size n = 1000 Number of respondents favor the candidate, X = 214 The critical…

Q: In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and…

A: The objective of this question is to construct a 98% confidence interval for the difference in…

Q: A student polls his school to see if students in the school district are for or against the new…

A: From the provided information, Sample size (n) = 395 Out of which 210 are against the new…

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

A: Solution:There is no estimates available, hence the sample proportion is assumed to be 0.50.The…

Q: A poll of 1103 home sellers found that 29.8% were trying to sell their home without a real estate…

A: Given,sample size(n)=1103sample proportion(p^)=0.298margin of error(E)=0.027

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

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Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: From the provided information, Sample size of Country B (n) = 1023 Sample proportion (p̂) = 0.22…

Q: Suppose someone wanted an 75%-confidence interval. What value of z should they use? Choose the…

A: Level of significance ɑ=0.25

Q: In a previous study, it was found that p̂= .73 for a particular sample. Suppose we would like to…

A: Given information Error = 0.01 Confidence level = 0.98

Q: A national survey of 2000 adult citizens of a nation found that 23% dreaded Valentine's Day. The…

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

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Q: Part a and b please

A: Step 1:(a) Find the percentage of voters who chose Candidate A. To find the percentage of voters who…

Q: In a past presidential election, 37,285,240 people voted for Candidate A; 37,201,620 for Candidate…

A: Percentage=value for the corresponding variable observationtotal value*100 The value range interval,…

Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: For the given data The99​%confidence interval for the proportion of adults from Country B who say…

Q: Refer to the following scenario. An epidemiologist is worried about the prevalence of the flu in…

A: To find the sample size required for estimating the population proportion with a 95% confidence…

Q: Find a 95% confidence interval for the proportion of the entire voter population who approve or…

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Q: You wish to evaluate the differences in educational quality between two training centres (A and B).…

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Q: In a past presidential​ election, 37,979,113 people voted for Candidate​ A 37,758,117 for Candidate​…

A: a. In the past presidential​ election, 37,979,113 people voted for Candidate​ A; 37,758,117 for…

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

A: conduct a poll E = 0.03 90% CI n = ?

Q: political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each…

A: Given that.  n=310 , Candidate A=110 , Candidate B=185 Unsure or plan to vote for another…