A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents, 14​% chose chocolate​ pie, and the margin of error was given as ±3 percentage points. Given specific sample​ data, which confidence interval is​ wider: the 99​% confidence interval or the 80​% confidence​ interval? Why is it​ wider?

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: GIVEN DATA,  n=971x=554P^=Xn=554971=0.5705CI=0.99α=1-0.99=0.01we have to find out the confidence…

Q: You're considering going to graduate school, and you would like to know how many people would…

A:

Q: In a survey of 419 randomly selected gun owners, it was found that 85 of them said they owned a gun…

A: Obtain the margin of error at the 95% confidence interval. The margin of error at the 95% confidence…

Q: Given 25 confidence intervals in the figure to the left, which of the following is the most likely…

A: The confidence interval is an inference process which gives the range of plausible values of…

Q: A survey asked, "How important is it to you to buy products that are made in America?" Of the 600…

A: Given x=450 n=600

Q: A sample survey finds that 30% of a sample of 880 Ohio adults said good health was the thing they…

A:

Q: Use the sample data and confidence level given below to complete parts  (c).   A research institute…

A: It is given that, the number of respondents said yes (x) is 587 and the sample size (n) is 912.  The…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Step -2Given,Sample size, n = 726Number of favorable responses, x = 232Confidence level, C = 98% =…

Q: n a survey of 378 randomly selected gun owners, it was found that 83 of them said they owned a gun…

A: From the given information, Sample size (n) =378 Consider, X be random variable that denotes the gun…

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

A:

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

A: It is given that: p^ (proportion of adults, who lie chocolate pie at the sample level)=11% (i..e,…

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

A: given data n = 500 p^ = 14 %E = ± 5% which CI is wider ?  95% or 80% ? why ?

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

Q: d their candidate. State your answers as percents rounded to 1 decim

A: Here it is given that -  Of the 619 randomly selected likely voters surveyed, 305 supported their…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: The random variable people who are captured follows binomial distribution. The sample size is 1453.…

Q: A researcher would like to know the proportion of the households that has a cable subscription. She…

A:

Q: A survey of 26 individuals found that they spent an average of $39.21 on exercise attire for the…

A: Confidence interval is an inference process which is used to estimate the population parameter. The…

Q: A history teacher records the SAT scores of all 87 of her students. The data is used to construct a…

A: For calculating the confidence interval, we need to satisfy the following conditions: Independence…

Q: In a survey of 126 randomly selected gun owners, it was found that 53 of them said they owned a gun…

A: Find z-critical value: For the two-tail test, Area on each tail. Area to the left of the normal…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Emma wants to estimate the percentage of people who use public transportation in a city. She surveys…

A: Obtain the margin of error. The margin of error is obtained below: The formula for the margin of…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: The random variable not captured suspected criminals follows normal distribution. The sample size is…

Q: In order to make the decision for one business, your team constructed a 90% confidence interval, the…

A: For 90% confidence interval, the width of that confidence interval is 500.We have to reduce the…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given that the population is 1604 suspected criminals. In those, 1011 were not captured.

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

A:

Q: a survey of 183 randomly selected gun owners, it was found that 67 of them said they owned a gun…

A: Provided information is, in a survey of 183 randomly selected gun owners, it was found that 67 of…

Q: Mr. Price calculates a 95% confidence interval for the difference between the proportion of Aaron…

A: The 95% confidence interval for P Rodgers - P Mahomes is given as (-0.05, 0.15). When the repeated…

Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A:

Q: In a survey of 2105 adults in a recent year, 737 made a New Year's resolution to eat healthier.…

A:

Q: A magazine provided results from a poll of 1500 adults who were asked to identify their favorite…

A: It is given that the confidence levels are 0.80 and 0.99.

Q: A survey showed that 20.2% of the children that participated in the survey like flavor O If the…

A:

Q: (a) Find a 95% confidence interval for p1 - P2. (Use 3 decimal places.)

A: (a) A random sample of 336 married couples found that 292 had two or more personality preferences in…

Q: ublic Policy Polling recently conducted a survey asking adults across the U.S. about music…

A: We have given thatn=571, X=80, C.I=99%=0.99

Q: ou are a manager for a local convenience store. You want to determin proportion of your customers…

A: Given that  Margin of error =E=6.50%=0.0650 99% confidence.

Q: A magazine provided results from a poll of 1000 adults who were asked to identify their favorite…

A: Given Information :  A magazine provided results from a poll of 1000 adults who were asked to…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given information- A sample of 523 suspected criminals is drawn, of these people, 141 were captured.…

Q: A confidence interval was constructed to approximate a population proportion. The interval was from…

A: Given Data Lower limit,LL = 12.5 upper limit,UL = 18.5

Q: ou're considering going to graduate school, and you would like to know how many people would…

A: Given data, n=30 x=7 p=x/n =7/30 =0.23 z-value at 96% confidence is Zc=2.05

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

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

Q: A recent Gallup Poll interviewed a random sample of 1523 adults. Of these, 868 bought a lottery…

A: Margin of error is used to measure the error occurred in the sample. It explains the percentage of…

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

A: From the given information, The percentage of chocolate pie is 14%. There are 500 respondents.…

Q: The concept of a confidence interval for a population proportion is similar, but the math is a…

A: We have given thatn = 240x = 48

Q: A magazine provided results from a poll of 1500 adults who were asked to identify their favorite…

A: p=0.13, n=1500, ME=±0.05

Q: A  proportion confidence interval problem resulted in the following interval as the answer:  (…

A: We have to find margin of error..

Q: In a survey of 3177 adults aged 57 through 85 years, it was found that 83.6% of them used at least…

A: Given that,  Sample size is n= 3177 And proportion, p= 83.6%  83.6% on 3177 people used at least one…

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.