In a poll of 1000 randomly selected voters in a local election, 497 voters were in favor of school bond measures. What is the sample proportion p? What is the margin of error m for the 90% confidence level?

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

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Q: In a poll of 1000 randomly selected voters in a local election, 772 voters were in favor of fire…

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Q: In a poll of 1000 randomly selected voters in a local election, 691 voters were against fire…

A: Solution: n= 1000 Sample size of voters  x = 691 voters were against fire department bond measures.…

Q: When the sample size is 15 and you are doing a t test, the number of degrees of freedom is 15. True…

A: Given that  Sample size n =15 Degree of freedom =df =n-1

Q: Compute the margin of error of the 90% confidence level when a = 3 and n= 30

A: Given that  ?=3 , n=30 Formula for margin of error  E=Zc*?/√(n)

Q: How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole…

A: It is given that margin of error (E) is 0.0394 and the confidence level is 0.99.

Q: In a poll of 1000 randomly selected voters in a local election, 60 voters were in favor of fire…

A: Given: Sample size (n) = 1000 Let "x" be the voters in favor of fire department bond measures. x =…

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

A: It is given that the margin of error (E) is 0.08.

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

A: GivenMargin of Error(E)=0.03Confidence Interval(c)=90%Let p^=0.5α=1-0.90=0.10α2=0.05zα2=z0.05=1.6449…

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

A: Given: Margin of error (E) =0.05. Confidence interval =95%. Z value for 95% confidence interval is…

Q: To determine the preference in the consumption of dairy products in a residential area, a survey is…

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Q: 7. Find the sample size, n, needed to estimate the percentage of adults who have consulted fortune…

A: Given, Margin of error=0.09 Confidence level=98% p^=0.15

Q: the 1824 voters sampled in the exit poll discussed , 60.5% said they voted for Jerry Brown. Is there…

A: We have given that  Sample size n=1824 , Sample proportion p^=60.5%=0.605

Q: For a survey of 700 people in which 48% show support for an upcoming vote on a proposed…

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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: Here, zα/2 is the critical value at 99% confidence…

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

A: Determine the size of sample is needed. The size of sample is needed is obtained below as follows:…

Q: In a poll of 1000 randomly selected voters in a local election, 291 voters were against school bond…

A: From the provided information, Sample size (n) = 1000 291 voters were against school bond measures…

Q: a research poll institute asked respondents if they fet vulnerable to identify theft. in the poll,…

A: Given Data: n=1002 x=595 α=0.05   Calculating the sample proportion p⏜=xn=5951002=0.5938 As n is…

Q: In a poll of 1000 randomly selected voters in a local election, 473 voters were against fire…

A: Given,n=1000x=473α=1-0.99=0.01α2=0.005z0.005 =2.58

Q: n a recent poll, 500 people were asked if they liked dogs, and 92% said they did. Find the margin of…

A: Given data, n=500 p=92%=0.92 Z value at 90% confidence is Zc=1.645 margin of error(E)=?

Q: A survey of a city showed that 1,400 out of 3,500 voters were independent. What is a 97 % confidence…

A: Solution: Let X be the number of voters are independent and n be the sample number of voters. From…

Q: s. What is the sample proportion p^? What is the margin of error m for the 90% confidence level?…

A: It is given that the, In a poll of 1000 randomly selected voters in a local election, 716 voters…

Q: In a poll of 1000 randomly selected voters in a local election, 160 voters were in favor of fire…

A: Given,sample size (n)=1000no.of voters were in favor of fire department (x)=160α=1-0.99=0.01α2…

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

A: Here, there is no information about the population parameter. Hence, use the conservative estimate…

Q: In a poll of 1000 randomly selected voters in a local election, 415 voters were against school bond…

A: #Ans -  Given,           In a poll of n = 1000 randomly selected voters in a local election, x = 415…

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

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Q: 2) In a sample of 32 Toyota Tundra trucks from around a city, 14 have satellite radio as part of the…

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Q: use the given sample data and confidence level. In each case, (a) find the best point estimate of…

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Q: What must be true about the sampling method and the values of p, q, and n in order to construct a…

A: For constructing Confidence interval for proportion, following assumptions need to be care

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

A:

Q: A research institute poll asked respondents if they acted to annoy a bad driver. In the poll, n=2320…

A: The random variable percentage of people who said they honked follows binomial distribution. The…

Q: In a poll of 1000 randomly selected voters in a local election, 59 voters were against school bond…

A: The confidence interval is used to find the range of interval in which the true parameter lies in.…

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

A: Solution: From the given information, confidence level is 0.90 and E=0.06.

Q: If the sample portion is 0.448 What is the margin of error for the 95% Confidencelevel? 0.95 = 1.960…

A: Given that  Sample size n =1000 Favorable cases x =448 Sample proportion p^=x/n  =448/1000 =0.448

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, Use EXCEL…

Q: In a poll of 1000 randomly selected voters in a local election, 219 voters were against fire…

A:

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

A: Given:Margin of error (E) = 0.09Confidence level = 90%Since, the proportion of people that support…

Q: When is it appropriate to use a pooled sample test?

A: It is to determine when there is to use pooled sample test. There are some situation in testing we…

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

A: Find z-critical value:…

Q: In a recent poll of 200 randomly selected adults in the U.S., 130 were registered to vote. a) What…

A: Hello, thanks for your question. Since you have posted a question with multiple sub-parts, we will…

Q: In a poll of 1000 randomly selected voters in a local election, 437 voters were in favor of fire…

A: Solution: Given information: n= 1000 Sample size of voters  x= 437 voters were in favor of fire…

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: We are interested in conducting a study in order to determine what percentage of voters of a state…

A:

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

A: As there is no any estimates available, the sample proportion is assumed to be 0.50, that is,…

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.