Amendment A TV news reporter says that a proposedconstitutional amendment is likely to win approval in theupcoming election because a poll of 1505 likely votersindicated that 52% would vote in favor. The reporter goeson to say that the margin of error for this poll was 3%.a) Explain why the poll is actually inconclusive.b) What confidence level did the pollsters use?

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: Based on this, find a 90% confidence level for the true proportion of the voting population (pp)…

A: The sample size is n = 500 And number of individuals who preferred candidate A, X = 50 At 90%…

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: Out of 400 people sampled, 200 preferred Candidate A. Based on this, estimate what proportion of the…

A: It is given that the, Out of 400 people sampled, 200 preferred Candidate A. Based on this, estimate…

Q: Out of 300 people sampled, 57 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: Ms. Lisa Fong is considering running in the election for the HKBU Student Union President. Before…

A:

Q: Out of 400 people sampled, 300 preferred Candidate A. Based on this, estimate what proportion of the…

A: Given that Out of 400 people sampled, 300 preferred Candidate A.  Here x=300 n=400

Q: Out of 600 people sampled, 504 preferred Candidate A. Based on this, find a 99% confidence level…

A: Solution

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

A: Assume p-cap as 0.5 because no preliminary estimate is available.

Q: A newspaper reported the results of a political poll about which candidate likely voters preferred,…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: The margin…

Q: Out of 100 people sampled, 83 preferred Candidate A. Based on this, estimate what proportion of the…

A: Find z-critical value:…

Q: A sociologist wishes to conduct a poll to estimate the percentage of Americans who favor affirmative…

A: From the given information, she wants to use a 2003 estimate of 55% obtained from a Gallup Youth…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 31%. Given the…

A: The hypothesized proportion is 0.31.

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

A: From the given information,   Margin error = 0.06 Assume Sample proportion = 0.5   Critical value:…

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

A:

Q: Has the law that mandates the use of bicycle helmets failed? The National Cycling Association wants…

A: Dear students as per guidelines we answer the first three subparts only. Solution To find confidence…

Q: Out of 500 people sampled, 220 preferred Candidate A. Based on this, estimate what proportion of the…

A: The sample size The probability of success Confidence level To compute the confidence interval for…

Q: Richard Lewis & Larry David go to a restaurant 20 times. 16 times, Richard Lewis gets the good…

A: Computing the 95% confidence interval for population proportion: Here, the population proportion is…

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: Out of 500 people sampled, 440 preferred Candidate A. Based on this, estimate what proportion of the…

A: Suppose, p is the true proportion of the entire voting population, who prefers Candidate A.

Q: Out of 100 people sampled, 13 preferred Candidate A. Based on this, estimate what proportion of the…

A: It is given that sample size (n) is 100 and x is 13.

Q: population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as…

A: The sample size is The number of success (preferring candidate A) is .The level of confidence is

Q: Out of 300 people sampled, 60 preferred Candidate A. Based on this, estimate what proportion of the…

A: From the provided information, Sample size (n) = 300 From which 60 preferred Candidate A. Sample…

Q: A political poll estimates that 48% of Democrat voters will vote for Elizabeth Warren in the…

A: a)The 95% confidence level means that there is 95% confidence that the estimated population…

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

A: Find z-critical value:…

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.