In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of President Kennedy. Assume a recent poll asked 1500 American adults if they believe there was a conspiracy in the assassination and it found that 1180 believe there was a conspiracy.  Calculate a 91% confidence interval for the percentage of all Americans who believe in this conspiracy.

Q: Does the interval above provide evidence that more than 60% of northern Kentucky residents are…

A: Given : A 2013 survey of 1692 northern Kentucky AAA members was asked their opinion on instituting a…

Q: recent poll, 470 people were asked if they liked dogs, and 40% said they did. Find the margin of…

A: The critical value at 99% confidence level from standard normal table will be:   Following…

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

A:

Q: In a recent poll, 450 people were asked if they liked dogs, and 48% said they did. Find the margin…

A: Total number of people = 450 Given that in a recent poll, 450 people were asked if they liked dogs,…

Q: n a recent poll, 120 people were asked if they liked dogs, and 57% said they did. Find the margin of…

A: given data, n=120p^=0.57CI=0.99α=1-0.99=0.01we have to find out the confidence interval for the…

Q: Sixty-five percent of the human population has some form of lactose intolerance. As part of your…

A: We want to find the 90% confidence interval

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: 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, 130 people were asked if they liked dogs, and 24% said they did. Find the margin…

A: Given, Total number of people = 130 Probability that a person likes a dog = 0.24 z value at 99%…

Q: In a recent poll, 560 people were asked if they liked dogs, and 22% said they did. Find the margin…

A: For 95% confidence intervalα=1-CI=1-0.95=0.05So, zα2=z0.052=z0.025=1.96

Q: A poll was conducted to examine if people are happy with the government. 400 people were asked and…

A: It is an important part of statistics . It is widely used .

Q: In a sample of 500 Canadians, 275 say they would rather retire in the US than in Canada. Calculate…

A:

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: In a 2008 survey, people were asked their opinions on astrology - whether it was very scientific,…

A: (a)given that,possible chances (x)=71size(n)=1438success rate ( p )= x/n = 0.0494point of estimate =…

Q: A student polls his school to see if students in the school district are for or against the new…

A: From the provided information, Sample size (n) = 395 Out of which 210 are against the new…

Q: In a recent poll, 150 people were asked if they liked dogs, and 55% said they did. Find the margin…

A:

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…

A:

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: n a recent poll, 330 people were asked if they liked dogs, and 30% said they did. Find the margin of…

A: given data, n=330p=0.30CI=0.99α=1-0.99=0.01ME=?

Q: in a recent poll, 220 people were asked if they liked dogs, and 36% said they did . find the margin…

A:

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: n a recent poll, 230 people were asked if they liked dogs, and 70% said they did. Find the margin of…

A: It is given that the n = 230 and p hat is 0.70.

Q: A researcher wants to estimate the actual proportion of citizens of a certain country who feel that…

A:

Q: In a recent poll, 289 people were asked if they liked dogs, and 17% said they did. Find the margin…

A: Let X be the number of people who liked dogs Given: Number of people or sample size (n) = 289…

Q: A newspaper reported the results of a political poll about which candidate likely voters preferred,…

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

Q: In a survey of 2268 adults, 709 say they believe in UFOS. Construct a 99% confidence interval for…

A: According to the given information, we have Total number of adults in a survey = 2268 709 say they…

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 a recent poll, 170 people were asked if they liked dogs, and 24% said they did. Find the margin…

A:

Q: In a 2008​ survey, people were asked their opinions on astrology​ - whether it was very​ scientific,…

A: We have given that people were asked their opinions on astrology​ - whether it was very​ scientific,…

Q: In a recent poll, 430 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: In a recent poll, 430 people were asked if they liked dogs, and 54% said they did. Find the margin…

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

A:

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

A:

Q: You want to determine if the proportion of people who will vote for the president next year has…

A:

Q: Students at a certain college were asked if they have a car. After surveying 1692 students, it was…

A: Given : n = 1692 p^=24.8%=0.248Margin of error : E =2.1%=0.021Confidence level =95%=0.95The formula…

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: political researcher takes a survey of 310 randomly selected registered voters in Orlando, and each…

A: Given that.  n=310 , Candidate A=110 , Candidate B=185 Unsure or plan to vote for another…

Q: In a recent poll, 230 people were asked if they liked dogs, and 72% said they did. Find the Margin…

A:

Q: In a recent poll, 560 people were asked if they liked dogs, and 80% said they did. Find the Margin…

A: We have to find out given confidence interval..

Q: In a recent poll, 110 people were asked if they liked dogs, and 40% said they did. Find the margin…

A: For 99% confidence intervalα=1-CI=1-0.99=0.01So, zα2=z0.012=z0.005=2.576