A TV report conducted a survey of 978 people in New York City and found that 38% of the population believe that the Yankees will miss the playoffs this year. In the accompanying dialogue, the reporter states, we are 92% confident that the true proportion of people in New York City who believe that the Yankees will miss the playoffs this year lies between 34% and 42%. What does 92% represent in the report? 1) a confidence level 2) a confidence interval 3) a margin of error 4) a statistic 5) a parameter

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: A research group conducted an extensive survey of 2942 wage and salaried workers on issues ranging…

A: Given Information : A research group conducted an extensive survey of 2942 wage and salaried…

Q: The business college computing center wants to determine the proportion of business students who…

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first…

Q: 4. 14 out of 20 voters in Pennsylvania reported having voted for an independent candidate. It is…

A: Critical Value: In a test of hypotheses, Critical Values are the cut-off values that provide the…

Q: 2. In a sample 240 Benguet residents classified their occupation as white-collar job or blue-collar…

A: Given that  X=200 , n=240

Q: In September 2011, Gallup surveyed 1,004 American adults and asked them whether they blamed Barack…

A: (1) Given that,

Q: 2. A national health organization warns that 30% of the middle school students nationwide have been…

A: Given : n = 110 X = 21

Q: uman resources managers, 71% of respondents felt they should hire new staff within the next three…

A: The Upper limit can be calculated as: Upper limit = Point estimate (sample proportion) + Margin of…

Q: The Marist Poll published a report stating that 66% of adults nationally think licensed drivers…

A: Given that, The Marist Poll published a report stating that 66% of adults nationally think licensed…

Q: In a recent poll, 120 people were asked if they liked dogs, and 29% said they did. Find the margin…

A:

Q: Out of 1,500 licensed drivers, 900 admitted that they do not like to drive at night. What is the 92%…

A: Given Information:  Total Number of drivers = 1500  Number of drivers that do not like to drive at…

Q: 4. A college dean reported that 80% of all students majoring in Math are males. If 62 out of the 80…

A: 4] Followings are the explanation of the question  Use the One sample z proportion test   The…

Q: 1. A survey is conducted among 254 students in a state university. It found that 48% of the students…

A: Given: Sample proportionp^=0.48Number of trials (n)=254

Q: An online grocery company is researching the best location to start their new delivery service. They…

A:

Q: In a recent poll, 290 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A:

Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.…

A: The provided information is p=0.14q=1-p=1-0.14=0.86n=500E=3%=0.03p-Represents the proportion of…

Q: Among the 34,506 people who​ responded, 63​% answered​ "yes."   Use the sample data to construct a…

A: Given data: Total number of people who responded for the question presented by online site, n =…

Q: A poll asked the question, "What do you think is the most Important problem facing this country…

A: In statistical inference, there are two types of estimation,  Point estimation and Interval…

Q: A research report on a prospective study states that: “A comparison of the 90 normal patients with…

A: Contingency table and risk analysis

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A:

Q: Please help, thank you!

A: Solution: From the given information, p-hat = 18%, margin of error is plus or minus is 2%. That is,…

Q: In a sample of 271 people, 153 said they would vote for candidate B.  What is the upper bound of a…

A: Given that  In a sample of 271 people, 153 said they would vote for candidate B.  Sample size (n) =…

Q: company check police records on 590 accident selected at random and notes that the teenagers were at…

A: The sample proportion is computed as follows: The critical value for 95% confidence level, i.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: 4. In a study of perception, 80 men are tested and 7 are found to have red/green color blindness.…

A:

Q: 3. A medical technologist claims that 25% of the chain-smokers are teenagers. After making a survey…

A: 3)Givensample size(n)=42x=8p^=xn=842≅0.1905Confidence level=95%α=1-0.95=0.05

Q: According to a​ poll, 685 out of 1021 randomly selected adults living in a certain country felt the…

A: Given data, n=1021 x=685   a) sample proportion, (p)=x/n = 685/1021 = 0.6709

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: Solution:The confidence interval formula for proportion formula is,

Q: In a recent poll, 270 people were asked if they liked dogs, and 29% said they did. Find the Margin…

A:

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: Given data,P' = 17% =0.17Margin of Error (E) = 3% = 0.0395% confidence interval for P is…

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

A: Solution: From the given information, confidence level is 0.90 and E=0.06.

Q: 31% of 51 delegates in a political convention favored changing the rules to restrict the number of…

A: We have given that  Sample size n=51  Sample proportion p^=31%=0.31 90% confidence interval

Q: A pharmaceutical company is testing two distinct drugs to alleviate symptoms of a disease. In the…

A: Given information- Sample 1 - First drug Sample 2 - Second drug

Q: A national health organization warns that 30% of the middle school students nationwide have been…

A: Given Data Sample Size, n = 110 Number of successes, x = 21

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: It is given that 20 percent of the respondents answered “crime and violence” and the margin of error…

Q: In a recent poll, 390 people were asked if they liked dogs, and 83% said they did. Find the Margin…

A: We want to find the margin of error

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: The percentage of responndents answered crime and violence =  25%95% confidence interval margin of…

Q: 3: In a poll of 1000 likely voters, 560 say that the United States spends too little on fighting…

A:

Q: The Marist Poll published a report stating that 66% of adults nationally think licensed drivers…

A:

Q: In a taste comparison test, it was found that 56 of the 100 persons in a sample preferred the chunky…

A:

Q: An insurance company reported that, on average, claims for a certain medical procedure are $942. An…

A: Given,  95% CI for population mean = ($930 , $950)

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: Given information- Point estimate, p = 0.25 Margin of error  = 0.04 Confidence level, c = 0.95 We…

Q: a) How large a sample do you need to guarantee that a 95% confidence interval is no wider than 0.1?…

A: z = 1.96 Margin of error = 0.1 p = 0.5 The sample size is given by ​​​​​​​

Q: A poll asked the question, "What do you think is the most important problem facing this country…

A: The 95% confidence interval for the percentage of the population that would respond "crime and…

Q: In a recent poll, 570 people were asked if they liked dogs, and 14% said they did. Find the margin…

A: From the Standard Normal Table, the z value for 95% level is 1.96.

Q: 4. In a study of perception, 80 men are tested and 7 are found to have red/green color blindness.…

A:

Q: 2. A sample of 430 business applications included 150 men. Find the 99% confidence interval of the…

A: Answer:-  Given,  X=150 n=430

Q: In a past presidential election, 36,523,493 people voted for Candidate A; 36,417,321 for Candidate…

A: The appropriate interpretation is to be made considering the proportion of votes for candidate A.

Q: In a survey of 1000 randomly selected adults in the United States, participants were asked what…

A:

Q: A random sample of 25 statistics students was asked: “Have you smoked a cigarette in the past week?"…

A: Given that  Random sample size(n) = 25 Students reported smoking within the past week (X) =6…

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.