In a recent poll, 450 people were asked if they liked dogs, and 65% 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. 0.7851

Q: and ˆpp^ (p-hat) =0.52, find the margin of error at a 99% confidence level Give your answer to…

A: The margin of error can be calculated as: MOE=z×p^(1-p^)n

Q: In a recent poll, 460 people were asked if they liked dogs, and 94% said they did. Find the margin…

A: Ans - Given   P  =  94%    = 0.94,     The sample size  n = 460 people          95%  confidence…

Q: In a survey, the planning value for the population proportion is  p* = 0.33.  How large a sample…

A: It is given that the population proportion is 0.33.It is known that the critical value for 95%…

Q: A poll asked respondents if they felt vulnerable to identify theft. In the poll, n= 1000 and x= 501…

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Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

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Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A: Given that : n = 1072 x = 537 (a) to find the best point estimate of the population proportion p. P^…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

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Q: In a study of 50 customers that entered a store, 22 were female. What is the margin of error for a…

A: Given : Sample Size, n = 50 Number of successes, x = 22 confidence…

Q: In a survey, the planning value for the population proportion is .25. How large a sample should be…

A: Solution: It is given that the planning value for the population proportion is 0.25. The confidence…

Q: In July 2018, the Gallup Poll asked a random sample of 1033 American adults, "Has drug abuse ever…

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Q: In a survey of 2270 adults, 739 say they believe in UFOS. Construct a 99% confidence interval for…

A: In question, Given that in a survey of 2270 adults, 739 say they believe in UFOs. Then we'll find…

Q: d. What is the value for the margin of error for a 95% confidence interval? Give the 95% confidence…

A: Sorry! Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

A:

Q: The General Social Survey asked: “How many e-mails do you send in a day?” The results of 928…

A: Given information Sample size n = 928 Mean x̅ = 10.4 Standard deviation s = 28.5 Since significance…

Q: If n=20, (x-bar)=D46, and s=6, find the margin of error at a 95% confidence level Give your answer…

A: We have given that,  Sample size (n) = 20,  sample(x-bar) = 46,  standard deviation (s) = 6 We wil…

Q: In this question If n=20, ¯xx¯(x-bar)=38, and s=8, find the margin of error at a 90% confidence…

A: Given, Sample size = 20 Sample mean = 38 Sample standard deviation = 8   Degrees of Freedom:

Q: In a recent poll, 240 people were asked if they liked dogs, and 69% said they did. Find the margin…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: (a) How many subjects are needed to estimate the mean number of books read the previous year within…

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Q: Suppose a simple random sample of 700 was taken from a large population. The sample had 32%…

A: Note:Hey, since there are multiple sub-parts question posted, we will answer first three sub-parts.…

Q: In a survey, the planning value for the population proportion is . How large a sample should be…

A: Let, Proportion =p Margin of error=E CI is =Zc n=?

Q: Find the margin of error an the 95% confidence interval   -26. A recent survey of 65,000 households…

A: Solution: 26. The confidence level is 0.95. From the given information, p-hat=0.077 and n=65,000.…

Q: A survey of 385 people found that 114 graduated college. Which of the following is a 90% confidence…

A: Given X=114 n=385 90% confidence interval for proportion  Zc=1.645  , at alpha=0.10 p=X/n

Q: In a recent poll, 240 people were asked if they liked dogs, and 69% said they did. Find the margin…

A: Given,sample size(n)=240sample proportion(p^)=0.69α=1-0.90=0.1α2=0.05Z0.05=1.645    (from Z-table)

Q: A bank wishes to estimate the mean credit card balance owed by its customers. The population…

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Q: A 95% confidence interval forp is given as (0.34,0.66). How large was the sample used to construct…

A: Formula for the sample size needed to estimate a population proportion is

Q: A bank wishes to estimate the mean credit card balance owed by its customers. The population…

A: Determine the number of customers needs to be sampled. The number of customers needs to be sampled…

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

A: Given: Margin of error = 3% At 95% confidence level, the size of sample as to be calculated for the…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll,…

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Q: In a previous study, it was found that p̂= .73 for a particular sample. Suppose we would like to…

A: Given information Error = 0.01 Confidence level = 0.98

Q: 99% 0.01 0.005 2.576 ng this table, the necessary value for z2 for a 95% confidence level is

A: Given :  Confidence level ,c = 0.95

Q: In a recent poll, 390 people were asked if they liked dogs, and 8% said they did. Find the margin of…

A: n=390 p = 8%

Q: answer

A: Given: Population proportion, p = 0.25 Margin of error, E = 0.06 Confidence interval = 95% Then, by…

Q: Determine tc for n = 15 and a confidence level of 99%.

A: From the given information, Sample size (n) =15, Confidence level (1-α)= 0.99 Thus, the t-critical…

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

A: From the given information, Margin error (E) = 0.001 Assume sample proportion = 0.5   The objective…

Q: In a survey, the planning value for the population proportion is p* = 0.25. How large a sample…

A: It is given that margin of error (E) is 0.06 and the confidence level is 0.95.

Q: A study done by researchers at Alfred University concluded 70% of the 4380 student athletics who…

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Q: Use the given confidence interval to find the margin of error and the sample mean.  (4.81, 8.09)

A: The confidence interval is given by (4.81, 8.09)

Q: 1. Given: n=130, a = 25, level of confidence is 90%. What is the margin of error of the given data?

A: The sample size is given as 130, n=130 The standard deviation is given as 25, σ=25 The Confidence…

Q: use the given degree of confidence and sample date to contruct a confidence interval for the…

A: Sample size = n = 124 Sample number of events = x = 20 Sample proportion = p̂ = x/n = (20/124) =…

Q: Construct a confidence interval for the population proportion p. n ? 144, x ? 86, 90% confidence

A: Given: Confidence level = 0.90 Sample size (n) = 144 x = 86 Sample proportion p^=xn=86144

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll…

A: Given: n= 947 ,x= 580 At 99.0 % confidence level , z score= 2.576 Need to find confidence interval…

Q: Using your answers to parts (a) and (b), find a 95% confidence interval estimating the proportion of…

A: Here we need to construct a 95% confidence interval.

Q: Which store do you think is more expensive—physical or online? A recent survey found that 45% of…

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Q: In the SQF dataset, the sample proportion of the those stopped by police who are Black is 53%. The…

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

A: From the given information, Margin error (E) = 0.001 Assume sample proportion = 0.5   The objective…

Q: Visitors to Joshua Tree National Park were 94.14 percent confident that they would see a coyote.…

A: The confidence level is 94.14. 1-α=0.9414α=0.0586α2=0.02931-α2=0.9707 The critical value of…

Q: A study examines the mean height of 16-year-old male teenagers. Based on a sample of size 144, the…

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Q: A medical devices company wants to know the number of hours its MRI machines are used per day. A…

A: Given information- Population standard deviation, σ = 4 hours Confidence interval = 0.98…

Q: The Centers for Disease Control reported the percentage of people 18 years of age and older who…

A: Given:Margin of error (E) = 0.02Confidence level = 95%Population proportion (p) = 0.26

Q: Use the given data to construct a 99% confidence interval for the population proportion p. x= 50,…

A: We have given that,  Sample size (n) = 70 and favorable cases (x)=50  Then,  We will find 99%…

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.