A Gallop poll wants to determine the proportion of people who plan on voting for neither the republican or the democratic candidate in the upcoming election (those who will vote third party). They conduct a random phone poll, where they contact 500 individuals and ask them whether or not they plan on voting for a third party candidate. Of these 500 respondents, 35 people say they plan on voting for a third party candidate. Assuming all conditions are met, what is the 98% confidence interval for the true proportion of all people who plan on voting third party?

Q: ut of 400 people sampled, 152 preferred Candidate A. Based on this, estimate what proportion of the…

A: given data,n=400x= preferred Candidate A =152CI=0.90α=1-0.90 =0.10p^=xn=152400=0.38

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: calculate the 95% confidence interval for the Presidential performance approval rating for a survey…

A: Solution: Let X be the number of people approved of the president’s performance and n be the number…

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

A:

Q: Doug was the friend that told Phil (from Question 1) that he drinks too much coffee. It turns out…

A: Given the joint probability distribution between the number of coffees and the number of SportsCaf…

Q: Sixty-five percent of the human population has some form of lactose intolerance. As part of your…

A: We want to find the 90% confidence interval

Q: In studying his campaign plans, Mr. Singleton wishes to estimate the difference between younger…

A: sample size(n1)=769x1=497sample size(n2)=703x2=390confidence level=90%

Q: In a recent presidential election, 611 voters were surveyed and 308 of them said that they voted for…

A: Here, x =308 and n = 611.

Q: In a survey of 464 registered voters, 143 of them wished to see Mayor Paz lose her next election.…

A:

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 sample of 500 Canadians, 275 say they would rather retire in the US than in Canada. Calculate…

A:

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: qualities as options, one of which is "communicator", as the most important quality for an effective…

A: It is given that  Favourable cases, X = 121 Sample size, n = 275 Sample proportion, p^ = X/n…

Q: In studying his campaign plans, Mr. Singleton wishes to estimate the difference between younger…

A: sample size(n1)=769x1=497sample size(n2)=703x2=390confidence level=90%

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

A:

Q: 9. A supermarket is planning to market a new ice cream. However, before marketing this ice cream,…

A: No. of people who tasted ice cream (n)=400 No. of people who liked the ice cream (x)=244

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: Suppose a presidential candidate wants to compare the preferences of registered voters in the…

A: Given data, For North eastn1=1500x1=546Proportion is p1=5461500=0.364 For South…

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: Parliament in a nation of 10 million eligible voters has two block (block A and block B). Ahead of a…

A: The interval that we associate with an interval is called confidence interval. It describes the…

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

A: Let P be the population proportion (might be a hypothesized value), p be the sample proportion and α…

Q: A state legislator wants to determine whether his voters' performance rating (0 - 100) has changed…

A: The given data is Rating (last year) Rating (this year) 80 94 68 40 69 62 48 76 45…

Q: A regional survey of 561 companies asked the vice president of operations how satisfied he or she was…

A:

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: A random sample of 400 people is selected from Atlantic Canada. They are asked about their views on…

A: According to the given information, we have Given that a random sample of 400 people is selected…

Q: Out of 300 people sampled, 261 preferred Candidate A. Based on this, estimate what proportion of the…

A:

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

A:

Q: Students want to study the propotion of people in their university community who have tested…

A: given data, n=780x= no. of positive =x=516CI=0.99α=1-0.99=0.01

Q: f 260 employees selected randomly from one company, 18.46% of them commute by carpooling. Construct…

A: Given data, n=260 p=18.46% =0.1846 z-value at 98% confidence is Zc=2.326

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…

Q: Candidate Carter and Candidate Donner are both running for office. When local residents were…

A: Given data, for Candidate Carter p=37% for Candidate Donner. p=32% Margin of Error(E)=3%

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: A polling firm called 1,000 likely voters to ask about their political preferences. Of those polled,…

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.