In a survey of 1019 ​adults, a polling agency​ asked, "When you​ retire, do you think you will have enough money to live comfortably or not. Of the 10191 ​surveyed, 536 stated that they were worried about having enough money to live comfortably in retirement. Construct a 90​% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement

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

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

A:

Q: In a survey of 1013 ​adults, a polling agency​ asked, "When you​ retire, do you think you will have…

A: From the provided information, Sample size (n) = 1013 Out of which 531 stated that they were worried…

Q: A Pew Research Center report on gamers and gaming estimated that 49% of U.S. adults play video games…

A:

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: In a survey, 150 people were asked to identify their main source of news information; 93 indicated…

A: Given: The sample number of people that were asked to identify their main source of news information…

Q: 3. A survey of 2,950 Filipinos showed that 2,655 trust the Supreme Court decisions on legal issues.…

A: Let X be the number of trust the supreme court decision on legal issues  n be the sample size  Given…

Q: The General Social Survey asked, “How many emails do you send in a day?” The results of 928…

A: Given information Sample size, n = 928 Mean, x-bar = 10.4 Standard deviation, σ = 28.5 Since sample…

Q: In a recent poll of 1100 randomly selected adult bicyclists, 26% said they regularly ride their…

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Q: In a survey of 3985 ​adults, 711 oppose allowing transgender students to use the bathrooms of the…

A: Given, n=3985 x=711 To find a confidence interval for a population proportion.

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

A: The point estimate=p^=118200=0.59n=sample size= 200z=critical value of 95% confidence…

Q: In 2017, the CDC administered the Youth Risk Behavior Survey (YRBS) to a random sample of 14,795…

A: The random variable cyber bullied follows normal distribution. The sample size is 14795. The number…

Q: A survey of 1010 college seniors working towards an undergraduate degree was conducted. Each student…

A: The provided information are:

Q: In a study of 150 randomly selected accidents that required treatment in an emergency room, 36%…

A:

Q: In 2017, the CDC administered the Youth Risk Behavior Survey (YRBS) to a random sample of 14,795…

A: We have given that,  Favorable cases (X) = 2219 and sample size   (n) = 14795. Then,  We will find…

Q: A random variance survey of 495 adults found that 59 had diabetes. which of the following is a 98%…

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Q: In a survey of 4061 ​adults, 738 say they have seen a ghost. Construct a​ 99% confidence interval…

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have…

Q: Between 27 April 2020 and 10 May 2020, Gallup surveyed a random sample of 8,712 U.S. adults…

A: e) Given information: p^=0.24n=8712 Confidence level is 95%. From the standard normal table, the…

Q: In a survey of 7100 t.v views, 40% said they watch network news programs. Find the margin of error…

A: Solution: From the given information, p-hat=0.40 and n=7100. The confidence level is 0.95.

Q: A recent study among 150 street hawkers in Cape Town showed that 48 of them are of the opinion that…

A: Givensample size(n)=150x=48p^=xn=48150p^=0.32confidence interval…

Q: In a survey of 3983 ​adults, 747 oppose allowing transgender students to use the bathrooms of the…

A:

Q: In a survey of 2298 ​adults, 709 say they believe in UFOs. Construct a 95% confidence interval for…

A:

Q: In a survey of 1008 adults, a polling agency asked, "When you retire, do you think you will have…

A:

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

A: Given, The sample proportion is, Critical value: Using z-table, the z-critical value at the given…

Q: In a survey of 1007 parents of children ages 8 to 14, 75% say they are willing to get a second job…

A: Given information- A proportion of parents say they are willing to get a second job or part-time…

Q: In a random sample of 532 individuals, 78% stated they needed a laptop in order to work from home.…

A: Given that  n=532 , p=78%=0.78 99% confidence level

Q: In a recent poll of 1100 randomly selected home delivery truck drivers, 26% said they had…

A: From the provided information, Sample size (n) = 1100 26% said they had encountered an aggressive…

Q: 2. In a survey of 1024 US adults, 287 said that their favorite sport to watch is football. a. Find a…

A: It is given that the survey contains 1024 US adults and the number of US adults who favorite sport…

Q: In a random sample of 575 American goods, about 46.3% of them were transported by rail in 2017.…

A: Given,   Sample size = 575 Sample proportion = 0.463   Critical value: Using z-table, the z-critical…

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

A: Given that, X = 118 N = 200 99% confidence level

Q: The Nellie Mae organization conducts an extensive annual study of credit card usage by college…

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Q: In a survey 800 randomly selected 16 to 18 years old living in USA were asked whether they have ever…

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Q: In a survey of 1016 adults, a polling agency asked, "When you retire, do you think you will have…

A: A sample of 1,016 adults surveyed out of which 531 stated that they were worried about having enough…

Q: 13) When 470 junior college students were surveyed, 155 said they have a passport. Construct a 95%…

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Q: ) In a Gallup poll, 1011 adults were asked if they consume alcoholic beverages and 64% of them said…

A: 11. Given information: The sample size is 1011 adults. 64% of them said that they did. That is,…

Q: In a survey of 1024 US adults, 287 said that their favorite sport to watch is football. a. Find a…

A: From the provided information, Sample size (n) = 1024 Out of which 287 said that their favourite…

Q: In a survey of 2312 adults, 748 say they believe in UFOS. Construct a 99% confidence interval for…

A: Given that the sample size is n = 2312, And the number of adults who believe in UFOs, X = 748 At 99%…

Q: In a survey of 2291 ​adults, 708 say they believe in UFOs.   Construct a 90% confidence interval for…

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Q: A Gallup poll of 1487 adults showed that 43% of the respondents have Facebook pages.  Construct a…

A: Confidence Interval: In statistics, we can say a range of values of the specified population…

Q: 3. The Pew Internet and American Life Project conducted a poll between Oct 23 and Nov 19, 2006, in…

A: Given information X = 598, Sample size (n) = 935

Q: Based on a sample of 1000 adult Americans, USA Today reported that 840 of them preferred cheese on…

A: Given that on a sample of 1000 adult Americans, USA Today reported that 840 of them preferred…

Q: In a random sample of 230 men, 18 or older, 142 are married. Construct and explain a 98% confidence…

A: Given Data Sample Size, n = 230 Number of successes, x = 142.0 Significance level,…

Q: In a survey of 1011 adults, a polling agency​ asked, "When you​ retire, do you think you will have…

A:

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given : X = 300 n = 1815 p^ = xn    = 3001815    = 0.1653

Q: In a survey of 1020 adults, a polling agency​ asked, "When you​ retire, do you think you will have…

A: The known values are, The sample proportion is, Critical values: By using the standard normal…

Q: of 101 randomly selected mothers, 17% indicated that they pay for private preschool, what is the 99%…

A:

Q: In a survey of 952 respondents, 620 of them voted in a recent election. Find a 95% confidence…

A: From the provided information, Number of respondents (n) = 952 Number of respondents who voted in a…

Q: consider a random sample of 300 students in a university, 75 of them declared that they like playing…

A: A random sample of 300 students in a university in which 75 of them declared that they like playing…

Q: The Associated Press (October 9, 2002) reported that in a survey of 4722 American youngsters aged 6…

A: Obtain the 99% confidence level for the proportion of all American youngsters who are seriously…

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…

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.