A poll of 1000 voters has Biden leading by 538 to 462. What will the pollster indicate as the "margin of error"?
Q: A survey of 350 people shows that 210 people have seen a movie in the last month. Find the sample…
A: The sample proportion (p̂) is calculated by dividing the number of people who have seen a movie in…
Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?
A:
Q: In a recent poll, 130 people were asked if they liked dogs, and 19% said they did. Find the margin…
A: Find z-critical value:…
Q: survey samples 500 people. What is the margin of error for the survey? Round to two places.
A: Given P=0.5 Significance level=0.05 N=500
Q: The International Brotherhood of Slide Whistlers wants to conduct a survey to find what proportion…
A: Let COnfidence interval be 90% Zc=1.645 E=3%=0.03 p=0.5 n=?
Q: Horace Horsecollar is interested in the opinion of vacationers at Disney World. He creates a short…
A: We know that in Systematic sampling method, we choose the first unit randomly and all the other…
Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…
A:
Q: According to the results of a survey, 48% of 422 people indicated that American football is their…
A: We have given that Margin of error (E) = 2% = 0.02 When confidence level is not given by default we…
Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…
A: we wants to calculate the margin of error . let us consider level of significance =0.05 this is one…
Q: Linda Silbers is a social scientist studying voter opinion about a city bond proposal for a…
A:
Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…
A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:
Q: ouare the campaign manager for a politician. Last month’s poll showed your candidate had 46%…
A: Given data, p=46%=0.46 E=3%=0.03 z-value at 95% confidence is Zc=1.96 n=?
Q: A magazine article conducted a survey of 807 people in Phoenix metro area and found that 45% of the…
A: Sample size (n) = 807 Population proportion (p) = 45% = 0.45 And 97% confidence interval is (41%,…
Q: 3) How many people would you need to poll to get a margin of error of ±2.3%?
A: Let's assume number of people to 1000. Then the margin error of ±2.3%.
Q: A survey was conducted to find if modern young people want to have many children. 832 young men were…
A: 39% of 832 young men want to have more than one child that is about 324 people answered "Yes".
Q: When 445 junior college students were surveyed, 135 said that they have previously owned a…
A:
Q: Choose the correct answer below. O A. All the values within the margin of error are less than 50%. O…
A: Given:- The sample size (n = 1100) is large enough to compute the point estimate of the proportion…
Q: estimate the proportion of tenth graders reading at or below the eighth grade level. Ente
A: It is given thatThe total number of tenth graders =1265The number of students read above the eighth…
Q: A programmer plans to develop a new software system. In planning for the operating system that he…
A: The margin of error (E) is 0.03 and the confidence level is 0.95.
Q: You did a survey of students on campus to see if they used the light rail or not. 41 student said…
A: percentage problem
Q: Fear of the dark is quite common among children. However, what about adults? One polling agency…
A: We have given that n = 452 p = 34% = 0.34 When no confidence level given then by default we assume…
Q: Suppose that the results of a survey show that 51% of people consider summer as their favorite…
A: From the provided information, Proportion (p̂) = 0.51 Margin of error (E) = 0.04
Q: Find another classmate’s initial post and write down the margin of error that they calculated. You…
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Q: 33% prefer aisle seat
A: The confidence interval = 95%Margin of error [E] = 2.5%
Q: ) How many people would you need to poll to get a margin of error of ±4.8% ?
A: Let's take number of people as 1000. The margin error is ±4.8%.
Q: Allstate claims 92% if it's customes are happy with their service. You randomly call 57 customers…
A: From the given information we conduct Z test for proprtion.
Q: In a recent poll, 360 people were asked if they preferred cats or dogs. 49% said they preferred dogs…
A:
Q: Elaine is the leader of Andor. She wishes to know how the citizens feel about a particular issue,…
A: Given data, E=2.4%=0.024 Let p=0.50 z-value at 95% confidence is Zc=1.96 n=?
Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…
A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5% So, the…
Q: Suppose that I want to estimate the percentage of students who love statistics in California. How…
A: Given information- Margin of error, E = 3% = 0.03 Confidence level, c = 90% Since nothing is known…
Q: 1.) I want to estimate the proportion of adults who like sci-fi movies. How many people should I…
A:
Q: survey samples 2000 people. What is the margin of error for the survey? Round to two places.
A: Given N=2000 P=0.5 Significance level=0.05
Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…
A: Margin of Error (MoE): It is the range of values below and above the sample statistics of the…
Q: I would like to esCmate the proporCon of adults who own a pet. How many people should I poll in…
A: Given, c=0.94 and E=2%=0.02.
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- The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Suppose a sample of 2552 tenth graders is drawn. Of the students sampled, 2119 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 52% of 389 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 389 people were asked that question and 52% of them replied "Yes", the margin of error is %.Suppose that the result of a public opinion poll shows that just 10% of people would be willing to give up their cell phones for 1 week in exchange for $100. How many people would need to be surveyed in order to have a margin of error of ±2%?
- A study was conducted of pleas made by 1,025 criminals. Among those criminals, 953 pled guilty, and 395 of them were sentenced to prison. Among the 72 other criminals, who pled not guilty, 59 were sent to prison. Complete (a) through (d). a. What percentage of the criminals pled guilty? % (Round to the nearest tenth as needed.) b. What percentage of the criminals were sent to prison? % (Round to the nearest tenth as needed.) c. Among those who pled guilty, what is the percentage who were sent to prison? % (Round to the nearest tenth as needed.) d. Among those who pled not guilty, what is the percentage who were sent to prison? % (Round to the nearest tenth as needed.) ←One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 52% of 898 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 898 people were asked that question and 52% of them replied "Yes", the margin of error is %.One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 55% of 856 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 856 people were asked that question and 55% of them replied "Yes", the margin of error is % . ????????????
- One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 48% of 585 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 585 people were asked that question and 48% of them replied "Yes", the margin of error is % .One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the heart and cleanse the mind?" Unsurprisingly, 39% of 782 answers were "Yes". Calculate the margin of error for this poll. Round the percentage to one decimal place. Do not round intermediate steps. If 782 people were asked that question and 39% of them replied "Yes", the margin of error is % .A survey was conducted to find if modern young people want to have many children. 606 young men were asked if they want to have more than one child. 30% of them answered "Yes". Calculate the margin of error for this survey. Round the percentage to one decimal place. Do not round intermediate steps. If 30% of 606 young men want to have more than one child, the margin of error is %.
- To determine the proportion of voters who favor a certain candidate for governor, the campaign staff phones 2500 residents of the state chosen from state property tax rolls. The 2500 residents represent what?Suppose you have a job as a political poll person, approximately 130 million people voted in the last presidential election. How many people do you have to sample to be 95% certain you can identify a difference of 1%.
