In a survey of 2344 ​adults, 715 say they believe in

Q: In a survey of 2279 ​adults, 729 say they believe in UFOs. Construct a 90% confidence…

A:

Q: 12. In a sample of 600 Canadians, 265 say they would rather retire in the US than in Canada.…

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Q: If n=470 andp (p-hat) =0.69, find the margin of error at a 95% confidence level Give your answer to…

A: If the number of possible observations from the total sample size is calculated using the proportion…

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: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Given Data: x=722 n=1762   p^=7221762=0.4098

Q: A polling agency reported that 66 percent of adults living in the United States were satisfied with…

A: The 100 (1 – α)% confidence interval provides an interval estimation of the required population…

Q: A collage professor would like to estimate the proportion of students who pull an *all-nighter,"…

A: Given: n = 100 99% Confidence interval = (0.48 to 0.62) Formula Used: Confidence interval = p^ ±…

Q: In a random sample of 145 UNO students, we find that 53% have attended a Maverick hockey game at…

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Q: 2. A nutritionist wants to know the population proportion of Grade 1 learners who eat vegetables.…

A: We have given thatn = 1200x = 200p̂ = x/n = 200/1200 = 0.167Significance level (α) = 1 - 0.95 = 0.05

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 survey of 1,200 social media users, 56% said it is not okay to be friends with your boss.…

A:

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: b. In the year 2000, a survey of 1103 U.S. adults were asked who they felt was the greatest…

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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: one city, 79.6% of the 8500 students surveyed said they eat at the school cafeteria. Find the 95%…

A: Given n=8500

Q: In a survey of 50,00 people, 80% indicated that they listened to their favorite radio station…

A: Hern= 5000 P^ = 0.80 We have to construct 95% ci for p

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: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

Q: In a recent poll, 150 people were asked if they liked dogs, and 55% said they did. Find the margin…

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Q: A national polling organization wishes to generate a 98% confidence interval for the proportion of…

A: We need to find the sample size for the given interval.

Q: in a survey of 2230 adults, 57% thinks that land travel through a tourist bus is much more reliable…

A: Given,sample size(n)=2230sample proportion(p^)=0.57α=1-0.95=0.05α2=0.025Z0.025=1.96       (from…

Q: In a Harvard School of Public Health survey, 2105 of 10,904 randomly selected U.S. college students…

A: Given data is appropriate for testing of hypothesis. Because it is a large sample test for single…

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

A: Given , n = 1008 x = 598

Q: Of 380 randomly selected medical students, 210 said that they planned to work in a rural community.…

A: Solution: Let X be the number of medical students said that they planned to work in a rural…

Q: search for the Ford Motor Company, you find that a random sample of 800 households includes 721 in…

A: At 98% confidence level, the z value is 2.33 which can be obtained by using the standard normal…

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

A: Ans- Given the level of confidence interval   90 %                                        Then   α =…

Q: In a survey of 1000 people, 850 said they would not to travel to Disney World this summer. Construct…

A: Given: n=1000 and x=850 Then,p^=xn=8501000=0.85

Q: f n=300 and ˆpp^ (p-hat) =0.18, find the margin of error at a 99% confidence level Give your answer…

A:

Q: In a sample of 900 people, 378 say they snooze the alarm more than once in the morning. Find a 95%…

A: Given,   The sample proportion is,

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

A:

Q: A survey of 503 women shoppers found that 46% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 503 confidence level,c=0.99

Q: Find a 90% confidence interval for the true proportion of people that eat frog legs, if in a sample…

A: Given, n = 732 p = 0.65 1 - α = 0.90α = 0.1α2 = 0.05   To find, 90% confidence interval for the true…

Q: If n = 520 and p^ = 0.85, construct a 99% confidence interval

A: Here, n = 520 and p hat = 0.85.

Q: A survey​ asks, "If the husband in a family wants​ children, but the wife decides that she does not…

A: We have to create 99% confidence interval for the population proportion.

Q: A poll found that82​%of a random sample of 1093 adults said that they believe in ghosts. a.…

A: a) Given that n=1093p^=82%=0.82Confidence level=99%=0.99Significance level=0.01 The z critical value…

Q: In a survey of 32 students at a local high school, 17 support changing the schools mascot. Find the…

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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: After surveying 625 potential voters polled, you find out that 325 support candidate X and 300…

A: The sample proportion confidence interval is, p^±Zp^(1-p^)nwhere, p^ = the sample proportion…

Q: A survey of 360 college seniors found that 305 wish they had spent more time studying. Find a 94%…

A: Givensample size(n)=360x=305p^=xn=305360=0.8472confidence interval = 94%

Q: 3: In a poll of 1000 likely voters, 560 say that the United States spends too little on fighting…

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Q: A recent study of 750 internet users in Europe found that 35% of internet users were women. What is…

A: It is given that the study of 750 internet users in Europe found that 35% of internet users were…

Q: Suppose you calculate a 99% confidence interval of 14.71 to 21.64. Determine the margin of error.

A: Given information- We have given a value of 99% confidence interval is- C.I = (14.71, 21.64) Lower…

Q: When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a…

A: The provided information is: It is given that 106 college students (s) own a car among 258 college…

Q: b. In the year 2000, a survey of were aske those surveyed, 279 reported that Abraham Lincoln was the…

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Q: In a survey of 2273 ​adults, 728 say they believe in UFOs.   Construct a 99% confidence interval for…

A: Given Information: Sample size (n) = 2273 Out of which X = 728 adults say they believe in UFOs. To…

Q: b. In the year 2000, a survey of 894 U.S. adults were asked who they felt was the greatest…

A: Givenn=894x=194p^=xn=194894=0.2170Confidence interval = 99%

Q: Identify the t-score for a 99% confidence interval if the sample size is 70. t = The answer isnt…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.