in a recent poll, 220 people were asked if they liked dogs, and 36% said they did . find the margin of error for this poll, at the 95% confidence level.

Q: and ˆpp^ (p-hat) =0.52, find the margin of error at a 99% confidence level Give your answer to…

A: The margin of error can be calculated as: MOE=z×p^(1-p^)n

Q: Use the confidence interval to find the margin of error and the sample mean. (1.52,2.06)

A: Given: Confidence interval is (1.52, 2.06) To determine: The margin error and The sample mean.…

Q: In a poll of 1000 randomly selected voters in a local election 170 voters were against school bond…

A:

Q: Use the confidence interval to find the margin of error and the sample mean. (1.71, 1.99)

A: Solution:  Given data: confidence Interval = (1.71, 1.99) To find: 1.Margin of error 2. Sample mean…

Q: Explain how the Choosing of a Level of Confidence is done.

A: The level of confidence represents how often the true percentage of the population lies within the…

Q: If we want to be within 0.02 of the true proportion of homes that have a direct television receiver…

A: The population proportion is 82%, the confidence level is 98% and estimate is within 0.02.…

Q: In a survey, people were asked whether they thought sun went around the planet Earth or vice versa.…

A: (a)   Obtain the proportion of people in the survey who believed the sun went around earth. The…

Q: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level E=

A: If n = 590 and ˆp=0.48, find the margin of error at a 99% confidence level

Q: Out of 200 people sampled, 166 preferred Candidate A. Based on this, estimate what proportion of the…

A: Sample size (n) = 200 Out of which 166 preferred candidate A that is (x) = 166 The sample proportion…

Q: Based on a survey of a random sample of 900 adults in the United States, a journalist reportS that…

A:

Q: Political survey- A political analyst found that 43% of 300 randomly seleted republican voters feel…

A: It is given that p hat is 0.43 and sample size is 300. The confidence level is 0.95.

Q: If n = 200 and p^ = 0.64, find the margin of error at a 95% confidence level.

A:

Q: The. Nielsen television ratings used a random sample of 2,000 homes and found that 45% of the homes…

A:

Q: Determine whether the outcome is a Type I error, a Type II error, or a correct decision.

A: The type I error is defined as rejecting the null hypothesis when it is true. The type II error is…

Q: one city, 79.6% of the 8500 students surveyed said they eat at the school cafeteria. Find the 95%…

A: Given n=8500

Q: The president’s administration wants to know whether the voters support their foreign aid program. A…

A: Givenn=100x=52p^=xn=52100=0.52Confidence interval = 99%

Q: lowing is the correct decision?

A:

Q: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

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

A: (a). Find the best point estimate of the population proportion p: It is given that, in a poll of n =…

Q: If n=23, ¯x (x-bar)=38, and s=5, find the margin of error at a 99% confidence level

A: The degrees of freedom is obtained as follows:

Q: What happens to the margin of error if you increase the confidence level?

A: We know that, Margin of error=zσn

Q: hen constructing a confidence interval, a larger sample will ___ the margin of error and the…

A: The confidence interval can be calculated as: Confidence Interval =x¯±z×σn=x¯±E Here, x¯=…

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: You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You…

A:

Q: In a previous election, the confidence interval for the proportion of likely voters who would vote…

A: given;confidence interval for the proportion;(0.4401, 0.5199)i.e. (p^-E, p^+E)where  p^ : point…

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

A:

Q: ut of 600 people sampled, 168 preferred Candidate A. Based on this, estimate what proportion of the…

A:

Q: f n=300 and ˆpp^ (p-hat) =0.18, find the margin of error at a 99% confidence level Give your answer…

A:

Q: Which of the common confidence levels (90%, 95%, or 99%) would you prefer to use if you wanted to…

A: Introduction: The “smallest” confidence interval implies the confidence interval with the shortest…

Q: Find 90% confidence interval for the true proportion of all medical students who plan to work in a…

A: Given : Sample Size, n = 300 Number of successes, x = 30

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Let p denote the proportion of people answered yes to the question. Let E denote the margin of…

Q: The 85.7% confidence interval estimate for p was (0.14, 0.16). Find ?′ and ME

A:

Q: The sampling plan: n = 350 and c = 1, meets a confidence-reliability of (95%, 99%) A. True or False.…

A:

Q: At one large college, 1867 out of the 2500 students surveyed said they plan to take another science…

A: The known values are, p^=1,867/2,500=0.7468, n=2,500. Using standard normal table, the critical…

Q: 3. Aresearcher wants to estimate the daily expenses of college students. He wants a 99% confidence…

A:

Q: If n = 220, p-hat = 0.4, then what will be the 90% Confidence Interval for the population…

A:

Q: Very briefly, explain if the value in the dominator of the one sample and independent sample t test…

A: Major difference is the degrees of freedom

Q: What is the relationship between the p-value for one-sided vs two-sided alternatives? Draw it and…

A: If T is test statistic and T0 is the calculated value, then observed level of significance or…

Q: 19) A political survey had a margin of error of 4.25%. If the surveyor used a 90% confidence level…

A: Assume p-hat as 0.5, since no preliminary estimate is available.

Q: find the margin of error at a 90% confidence level

A: Given : n=330 , p-hat=0.28  , α=0.10 We want to find the margin of error at a 90% confidence level.

Q: A software company is interested in approving customer satisfaction rate from the 60%currently…

A: Given ,population proportion (P)=0.60Sample size (n)=245And X=156Sample…

Q: = 360 and p = 0.09, find the margin of error at a 99% confidence level

A:

Q: a recent poll, 210 people were asked if they liked dogs, and 42% said they did. Find the margin of…

A:

Q: A poll of 1200 people is taken. Find the margin of error assuming a 95% level of confidence

A: To find the margin of error:

Q: Through polling, it was estimated that the percent of people who will vote for a particular…

A: Given information Percentage of people who will vote in a upcoming election p-hat = 36.2% Margin of…

Q: previous election, the confidence interval for the proportion of likely voters who would vote for…

A:

Q: There are 2,000 eligible voters in a precinct. 500 of the voters are randomly selected and asked…

A: We have to create 99% confidence interval for the proportion.

Q: Political Survey- A political analyst found that 43% of 300 randomly selected republican voters feel…

A: It is given that p hat is 0.43 and sample size (n) is 300. The confidence level is 0.95.

Q: If 390 people were asked if they liked dogs, and 82% said they did What is the margin of error of…

A: The sample size is 390, proportion is 0.82. Computation of critical value:…

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

A: Given, The sample proportion is,

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.