A poll of 2657 U.S. adults found that 86% regularly used Facebook as a news source. Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 90% level of confidence. Round all answers to 2 decimal places,

A poll of 2657 U.S. adults found that 86% regularly used Facebook as a news source. Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 90% level of confidence. Round all answers to 2 decimal places,

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A survey found that 73% of a random sample of 8344 American adults approved of cloning endangering…

Q: In a recent poll, 300 people were asked if they liked dogs, and 54% said they did. Find the Margin…

A: Obtain the margin of error for the poll at the 95% confidence level. The margin of error for the…

Q: In a recent poll, 420 people were asked if they liked dogs, and 9% said they did. Find the Margin of…

A: Given: Sample size=n=420,Number of people who liked dogs:x=420×9100=37.8≈38,Significance…

Q: In a recent poll, 470 people were asked if they liked dogs, and 94% said they did. Find the Margin…

Q: A poll of 1995 U.S. adults found that 1818 U.S. adults, or 91.128% regularly used Facebook as a news…

A: Given that: Sample proportion, p^=91.128%=0.91128 The sample size, i.e., the sampled no. of US…

Q: In a recent poll, 370 people were asked if they liked dogs, and 69% said they did. Find the Margin…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: In a survey of 2274 adults, 749 say they believe in UFOs. Construct a 99% confidence interval for…

Q: A CBS News / N.Y. Times poll found that 329 out of 763 adults said they would travel to outer space…

Q: In a recent poll, 410 people were asked if they liked dogs, and 24% said they did. Find the Margin…

A: We have to find margin of error.

Q: A television station surveys 200 customers and finds that 23% of customers watch the evening news.…

A: Given data n=200 p=23% confidence level=99%

Q: In a recent poll, 270 people were asked if they liked dogs, and 15% said they did. Find the Margin…

A: given data sample size (n) = 270p^ = 0.1595% ci p, E = ?

Q: Find the Margin of Error for this poll, at the 95% confidence level.

A: It is given that in a recent poll, 210 people were asked if they liked dogs, and 36% said they did.…

Q: A research found that 70% of 1500 randomly selected U.S. adults believe in global warming. Find the…

A: Solution: From the given information, p-hat=0.70 and n=1500.

Q: In a survey of 2313 adults, 714 say they believe in UFOs. Construct a 90% confidence interval for…

A: Given, In a survey of 2313 adults, 714 say they believe in UFOs. n=2313 x=714 Sample proportion:…

Q: n a recent poll, 510 people were asked if they liked dogs, and 45% said they did. Find the Margin of…

A: Given Data Sample Size, n = 510 p̂= 0.45 Significance level, α =1-0.99…

Q: In a recent poll, 410 people were asked if they liked dogs, and 32% said they did. Find the Margin…

Q: A recent study of 85 workers found that 61 people rode the bus to work each day. Find the 95%…

A: Given that A recent study of 85 workers found that 61 people rode the bus to work each day. Find…

Q: What type of educational background do CEOs have? In one survey, 344 CEOs of medium and large…

Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99% =0.99Then, calculate αα = 1-0.99 =0.01Now,…

Q: A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% regularly used Facebook as a news…

A: Given that: Sample proportion, p^=0.5042 sample size (n) =900

Q: A survey of 100 men found that 68% said they find it hard to buy holiday gifts that convey their…

A: Solution

Q: A research group asked 4488 Americans how they fall asleep, and 536 of them fall asleep on their…

A: Obtain the 90% confidence interval for the percentage of all Americans who fall asleep on their…

Q: BCD Travel wants to estimate the population proportion of adults who favor historical sites for…

A: p^ = 59% = 0.59Sample size = 24086% confidence level

Q: In a recent poll, 260 people were asked if they liked dogs, and 80% said they did. Find the Margin…

A: Given:

Q: In a recent poll, 300 people were asked if they liked dogs, and 71% said they did. Find the Margin…

Q: In a recent poll, 140 people were asked if they liked dogs, and 52% said they did. Find the Margin…

A: Given data, n=140 p=52%=0.52 z-value at 99% confidence is Zc=2.576 Margin of error(E)=?

Q: in a recent poll, 130 people were asked if they liked dogs, and 46% said they did. Find the Margin…

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

Q: t poll, 240 people were asked if they liked dogs, and 35% said they did. Find the Margin of Error…

A: Given: n = 240 p^=35%=0.35 The value of z at 95% confidence level is 1.96, which can be obtained by…

Q: A sample of 175 U.S. adults is composed of 100 women and 75 men. What is the estimate of the true…

A: Given problem Given that

Q: In a recent poll, 360 people were asked if they liked dogs, and 55% said they did. Find the Margin…

A: It is given that Sample size n = 360 Sample prpoprotion = 0.55 The critical value of Z at 99%…

Q: In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length…

A: We have to find confidence interval value.....

Q: In a science fair project, Emily conducted an experiment in which she tested professional touch…

A: Given data, n=330 x=155 sample proportion p=x/n =155/330=0.47 z-value at 95% confidence is zc=1.96

Q: In a recent poll, 490 people were asked if they liked dogs, and 51% said they did. Find the Margin…

A: Given data,n=490p=51%=0.51z-value at 99% confidence is Zc=2.576E=?

Q: A Pew Research Center survey of 1,857 internet users found that 1,124 people agreed that online…

A: Given: CI=95% p^=11241875=0.599 n=1875

Q: A poll showed that 385 out of 700 adults said they would be interested in traveling to outer space…

A: This question requires accurate results, Hence I will use excel to solve this question.…

Q: Construct a 95% confidence interval for the proportion of college students who say they own their…

A: Given : n=410 , X=155 , α=0.05 We want to find the 95% confidence interval for the proportion of…

Q: In a recent poll, 540 people were asked if they liked dogs, and 28% said they did. Find the Margin…

Q: In a recent poll, 150 people were asked if they like dogs, and 40% said they did. Find the margin of…

Q: A CBS News/New York Times poll found that 329 out of 763 randomly selected adults said they would…

A: It is given that 329 out of 763 randomly selected adults said they would travel to outer space if…

Q: In a recent poll, 390 people were asked if they liked dogs, and 33% said they did. Find the Margin…

A: Given p^=Sample proportion=0.33 n=sample size=390 Confidence interval = 99%

Q: In a recent poll, 190 people were asked if they liked dogs, and 81% said they did. Find the Margin…

Concept explainers

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.

Question

A poll of 2657U.S. adults found that 86% regularly used
Facebook as a news source.
Find the margin of error and confidence interval for the
percentage of U.S. adults who regularly use Facebook as a
news source, at the 90% level of confidence. Round all
answers to 2 decimal places.
Margin of Error (as a percentage):
Confidence Interval:
% to
%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

In a recent poll, 450 people were asked if they liked dogs, and 54% said they did. Find the Margin of Error for this poll, at the 95% confidence level. Give your answer to four decimal places if possible.
In a recent poll, 230 people were asked if they liked dogs, and 72% said they did. Find the Margin of Error for this poll, at the 90% confidence level. Give your answer to four decimal places if possible.
In a recent survey of 1092 students, 966 of them would like to recommend www.helpyourmath.com to their friends. Construct a 95% confidence interval estimate the proportion of all students who would recommend to their friends. www.helpyourmath.com Give your answers to three decimals:
In a recent poll, 560 people were asked if they liked dogs, and 80% said they did. Find the Margin of Error for this poll, at the 95% confidence level. Give your answer to four decimal places if possible.
In a recent poll, 540 people were asked if they liked dogs, and 54% said they did. Find the margin of error of this poll, at the 99% confidence level. Give your answer to three decimals. (Dont Hand writing in solution) .
In a recent survey of 1003 students, 977 of them would like to recommend www.helpyourmath.com to their friends. Construct a 90% confidence interval to estimate the proportion of all students who would recommend www.helpyourmath.com to their friends. Give your answers to three decimals: Submit Question
Construct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.
In a recent poll, 350 people were asked if they liked dogs, and 41% said they did. Find the Margin of Error for this poll, at the 95% confidence level. Give your answer to four decimal places if possible.
In a recent poll, 290 people were asked if they liked dogs, and 61% said they did. Find the Margin of Error for this poll, at the 90% confidence level. Give your answer to four decimal places if possible.
In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 337 trials, the touch therapists were correct 163 times. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists. (round to 3 decimal places)
Many high school students take the AP tests in different subject areas. In one year, of the 144,651 students who took the biology exam 84,698 of them were female. In that same year, of the 214,919 students who took the calculus AB exam 125,498 of them were female. Estimate the difference in the proportion of female students taking the biology exam and female students taking the calculus AB exam using a 99% confidence level. Round to four decimal places. With 99 O % confidence, it can be concluded that the true difference in the proportion of female students taking the biology exam and the proportion of female students taking the calculus AB exam (P₁ - P2) is between and
An economist wants to know if the proportion of the children in the United States that speak a language other than English at home changed since 2016, when 22% of children did. How many children would need to be surveyed of the economist wants to be within 2 percentage points of the true proportion with 92% confidence?