A newsgroup is interested in constructing a 99% confidence interval for the proportion of all Americans who are in favor of a new Green initiative. Of the 590 randomly selected Americans surveyed, 366 were in favor of the initiative. Round answers to 4 decimal places where possible. a.  With 99% confidence, the proportion of all Americans who favor the new Green initiative is between___and___ b.  If many groups of 590 randomly selected Americans were surveyed, then a different confidence interval would be produced from each group. About_____percent of these confidence intervals will contain the true population proportion of Americans who favor the Green initiative and about____ percent will not contain the true population proportion.

Q: A random sample of 80 people was selected, and 22 of the selected people indicated that it would be…

A:

Q: In a recent poll, 460 people were asked if they liked dogs, and 94% said they did. Find the margin…

A: Ans - Given   P  =  94%    = 0.94,     The sample size  n = 460 people          95%  confidence…

Q: A past survey of 1,068,000 students taking a standardized test revealed that 7.8% of the students…

A:

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

A:

Q: nd a 90% confidence interval for for the probability of success θ in a Bernoulli trial with n=48.

A: Confidence interval: It is defined as the range that contains the value of the true population…

Q: 50. Suppose a 90% confidence interval is stated as (0.3011, 0.4189). What is the sample proportion…

A: Given information- We have given a value of 90% confidence interval is- C.I = (0.3011, 0.4189) Lower…

Q: A past survey of 1,068,000 students taking a standardized test revealed that 9.6% of the students…

A: Given Information: Sample size (n1) = 1,068,000 Sample proportion (p^1) = 9.6% = 0.096 Sample size…

Q: Which of the following would result in the narrowest confidence interval? O A sample size of 30 with…

A: Given, The values of α and n.

Q: 3. In a 2009 Gallup Poll, 441 of 507 adults said it was "morally wrong" to clone humans. Assume…

A: Solution : Given :  x = 441              n = 507 Sample proportion is, p = xn = 441507     = 0.8698…

Q: 39. A polling agency reported that 66 percent of adults living in the United States were satisfied…

A: From the provided information, Population proportion (p) = 0.66 Sample size (n) = 1542 Confidence…

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

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Q: a 90% confidence interval for for the probability of success in a Bernoulli trial with n=48

A: Confidence interval: It is defined as the range that contains the value of the true population…

Q: 1. In a recent poll 62 out of 149 randomly chosen students at Allen High School say they plan to buy…

A:

Q: In a random sample of 850 consumers. 385 reported that they were able to purchase a Playstation 5.…

A: According to the given information, we have In a random sample of 850 consumers. 385 reported that…

Q: Gallup is a company that carries out daily opinion polls on a variety of topics. In a recent daily…

A: The confidence interval can be found by using the formula p±zp(1-p)n

Q: 1. According to a report published by Gallup Institute on February 20, 2020, based on the interview…

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Q: Based on a sample of 250 people, she obtains the following 99% confidence interval for the…

A: Given : 99% confidence interval for the population proportion, p: 0.113 < p < 0.171.

Q: Out of a sample of 1,450 people, 1,000 said they prefer to drive themselves to work rather than…

A: Given Data: x=1000 n=1450   p^=10001450=0.6897   z-value corresponding to 95% Confidence…

Q: 1. A Pew Poll conducted in 2013 surveyed a random sample of 200 adult Americans and 36 of them said…

A: Note- Since you have posted multiple questions, as per our guidelines we are supposed to answer only…

Q: Wildlife biologists inspect 153 deer taken by hunters and find that 32 of them carry ticks that test…

A:

Q: In a simple random survey of 89 students of faculty of medicine at the University of Jordan, 73 said…

A: It is given that out of 89 students, 73 said that Principles of Statistics was the most satisfying.…

Q: The figure to the right shows the results of a survey in which 1016 adults from Country A, 1014…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: In describing the findings of a 2010 Public ReligionResearch Institute poll, the researchers…

A: Margin of error (E)= Z * SE   As the confidence interval increases z-value also increases. Example:…

Q: A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 98% confidence…

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Q: Which of the following would result in the widest confidence interval? O A sample size of 30 with…

A:

Q: A past survey of 1,068,000 students taking a standardized test revealed that 8.5% of the students…

A: Solution: From the given information, n1=1,068,000, p1-hat=0.085, n2=1,476,000 and p2-hat=0.092. The…

Q: * In a random sample of n = 300 families owning television sets in the city, it is found that x =…

A:

Q: Suppose we take a random sample, N = 64, from the Texas population of adults and find that the…

A: It is given that, Sample size, n=64 x̅=14 and σ=4 We have, Z0.05/2 = 1.96 We can find 95% confident…

Q: In a random sample of 95 manufacturing firms, 67 indicated that their company attained ISO…

A: For part i]: Linear relationship: 1]The graph of linear relationship forms a straight line.  2] A…

Q: The figure to the right shows the results of a survey in which 1005 adults from Country​ A, 1023…

A: For the given data The99​%confidence interval for the proportion of adults from Country B who say…

Q: A past survey of 1,068,000 students taking a standardized test revealed that 8.5% of the students…

A: Given  n1=1068000 , p1cap=0.085, n2=1476000, p2cap=0.092 We want to find 95% CI for difference in…

Q: A survey of 800 women shoppers found that 17% of them shop on impulse What is the 98% confidence…

A:

Q: In exploring possible sites for a convenience store in a large neighbourhood, the retail chain wants…

A: Determine whether the given margin of error is appropriate if  the random sample of size n = 100…

Q: A past survey of 1,068,000 students taking a standardized test revealed that 7.8% of the students…

A: Given: Level of significance = alpha = 0.05 p1 cap = 0.078 p2 cap = 0.092 q1 cap = 1 - p1 = 0.922 q2…

Q: In a certain year, there were 80 days with measurable snowfall in Denver, and 63 days with…

A:

Q: 1) In a four-year psychedelic-mushroom experiment, 93 of the 300 subjects reported experiencing…

A: It is given that:

Q: 6. In a survey of 2563 adults from France, 1666 said that they believed that the activities of…

A: Solution:Here, p be the true population proportion of adults in France who thinks humans are…

Q: In a 95% confidence interval the quantity 0.95 = 1 – 0.05 is called the confidence coefficient. True…

A: The confidence coefficient is the confidence level stated as a proportion, rather than as a…

Q: 5. In a pre-election poll, a pollster finds that 552 out of 1025 people polled favor Smith.…

A: Given data: N = 1025 X = 552 Confidence level  = 95 %

Q: The manager of a car company will select a random sample of its customers to create a 90 percent…

A: From the provided information, Confidence level = 90% Margin of error = 0.06

Q: Suppose you didn’t know whether the coin was fair or not and you wanted to determine a 95%…

A: It is given that sample size (n) is 16,000 and x is 8040.

Q: In the construction of a confidence interval, if all other quantities are unchanged, an increase in…

A: Property of confidence interval:

Q: 1) Jaimie does a study on how many students have passed his classes in the past. He finds that 2739…

A: The random variable students who pass follow normal distribution. The number of successes is 2739.…

Q: A survey of a random sample of 256 college students found that 36% said they frequently experience…

A: For a known sample proportion, we want an interval to be estimated, which will include the true…

Q: In a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Given information- Margin of error, E = 5% = 0.05 Confidence level, c = 96% We have given that 37​%…

Q: A random sample of 80 people was selected, and 22 of the selected people indicated that it would be…

A: Given information: Sample size n=80 Number of selected people who indicated that it would be a good…

Q: The figure to the right shows the results of a survey in which 1003 adults from Country A, 1024…

A: Given information For country A p-hat = 0.35 n = 1003

Q: In the construction of confidence intervals, if all other quantities are unchanged, a increase in…

A: Given : sample size in increased

Q: In a​ poll, 69​% of the people polled answered yes to the question​ "Are you in favor of the death…

A: Given: Margin of errorE=0.02 Proportion of people who polled yes p^=0.69 The z value corresponding…

Q: Of 500 randomly selected college students, 200 use a particular brand of mobile phone. Assuming that…

A: Given : x = 200 n = 500 p^=xn=200500=0.4The formula for confidence interval is :p^±zcp^(1-p^)n

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.