In a recent opinion poll, a random sample of 2180 adult citizens were contacted, and 1128 of them said that they are going to vote for Jolly Good Party in the upcoming elections. Calculate the upper limit of a 95% confidence interval for the proportion of adult citizens in the population who intend to vote for Jolly Good Par

Q: In a survey funded by the UW school of medicine, 750 of 1,000 adult Seattle residents said they did…

A: Given X1=750 X1=893 n1=1000 n2=1123

Q: A company wants to take survey to estimate the percent of voters who favor a candidate.  They want a…

A: Given data,p=37%=0.37E=2%=0.02z-value at 95% confidence is Zc=1.96n=?

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

A: Find z-critical value

Q: A survey found that 73% of a random sample of 8344 American adults approved of cloning endangering…

A:

Q: In a survey of 1358 registered U.S. voters, 729 voted in a recent presidential election. Find the…

A: Given: n = 1358 X = 729 Formula Used: p = Xn Confidence Interval = p ± Z*p(1-p)n

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: The objective of this question is to determine the sample size needed for a poll to achieve a…

Q: mey currently use social media. Use the data from this survey to construct a 94% confidence interval…

A: The sample size is n = 2821 And number of social media users = 1657 At 94% confidence level, the…

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: Two groups of students are selected to test different learning techniques. The test scores of group…

A: From the provided data we compute the mean and sample standard deviation for the group 1 and group 2…

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: A poll of 1,600 voters in one district showed that 56​% of them would favor stricter gun control…

A: In this case, the confidence level is 95%. The 95% confidence interval for the population proportion…

Q: A poll of 1300 voters in one district showed that 715 voters would favor stricter gun control laws.…

A: The question is about confidence interval.Given :No. of voters in a poll ( n ) = 1300No. of voters…

Q: A random survey of 70 male sophomores showed 16 preferred off campus living and out of 63 female…

A:

Q: A survey of 425 randomly selected students at one university found that 300 students think they…

A:

Q: Today, the waves are crashing onto the beach every 5.6 seconds. The times from when a person arrives…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.....…

Q: In a recent opinion poll, a random sample of 587 adult citizens were contacted, and 464 of them said…

A: Given - Sample size = n = 587 Number of person going to vote for Jolly Good Party = X = 464…

Q: The school’s student government conducted a survey on determining the proportion of students who are…

A:

Q: A recent study of 85 workers found that 61 people rode the bus to work each day. Find the 95%…

A: Given that  A recent study of 85 workers found that 61 people rode the bus to work each day. Find…

Q: Many high school students take the AP tests in different subject areas. In 2007, of the 211,693…

A:

Q: You recently sent out a survey to determine if the percentage of adults who use social media has…

A: It is given that sample size (n) is 2,461 and x is 1,702.

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: You recently sent out a survey to determine if the percentage of adults who use social media has…

A: We have to find the confidence interval for population proportion (p) CI = p^ ±zα/2p^(1-p^)n Where,…

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: The random variable X follows binomial distribution. The margin of error is 0.08. The level of…

Q: 324 out of a simple random sample of 400 students hated their online math course. Find a 99%…

A: Given: Number of students that hated the online math course (y) = 324 Number of students (n) = 400…

Q: In a sample of 271 people, 153 said they would vote for candidate B.  What is the upper bound of a…

A: Given that  In a sample of 271 people, 153 said they would vote for candidate B.  Sample size (n) =…

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: The random variable percentage of people in the community that supports him/her follows binomial…

Q: A survey of 50 randomly chosen students, 10 of them have a surfing board. Create a 99% confidence…

A: Given n = 50           x = 10  therefore, p=xn                    = 0.2 X ~ B (n, p) P(X=x) = Cxn…

Q: Construct the 90% confidence interval for the percentage of residents that will vote for the female…

A:

Q: A political candidate feels that she performed particularly well in the most recent debate against…

A: We have given that 95% confidence ( -0.014, 0.064) We have to compute margin of error

Q: If the candidate only wants a 6% margin of error at a 99% confidence lev

A: Given that, The margin of error (E) is 0.06. Assume that p as 0.5.

Q: An internet service provider sampled 1000 of its customers, 189 of them experienced an interruption…

A: It is given that sample size (n) is 1000 and x is 189.

Q: A firm randomly samples 100 workers at its New York plant and finds that 32% of the workers say that…

A: The proportion of workers who say that they buy the firm’s product is 0.32.

Q: struct 95%, and 99% confidence intervals for p, the proportion of voters in the population who plan…

A: HERE GIVEN, n= 783 x= 522 (no of people who plan to vote for the Democratic candidate ) p^ = 522783…

Q: A survey of 927 voters in one state reveals that 537 fever approval of an issue before the…

A: We have given that,  Favorable cases (X) = 537 and sample size (n) = 927 Then, We will find the 95%…

Q: was the percentage of adults who used social media five years ago. Of the 2703 people who responded…

A: (a) The sample proportion is: p= x/n=1758/2703 =0.65 The value of z at 92% confidence level is 1/75,…

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: The given data is as follows:Margin of error, Confidence level,

Q: A poll showed that 385 out of 700 adults said they would be interested in traveling to outer space…

A: This question requires accurate results, Hence I will use excel to solve this question.…

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

A:

Q: During a period of 11 years, of 1700 people that were selected for grand jury duty, 30% of them were…

A: For large sample size population proportion will follow normal dustribution as per central limit…

Q: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A:

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

A: Given information- Confidence level, c = 98% Population proportion of all New York State union…

Q: In a recent poll, 540 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: From the given information,Sample size , n = 540Sample proportion , 54% = 0.54 Using formula,

Q: A political candidate has asked his/her assistant to conduct a poll to determine the percentage of…

A: Given information Error = 5% = 0.05 Confidence level = 0.95

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.